Conferences related to Downlink

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ICC 2015 - 2015 IEEE International Conference on Communications

IEEE ICC is one of the two flagship IEEE conferences in the field of communications; London is to host this conference in 2015. Each annual IEEE ICC conference typically attracts approximately 1,500-2,000 attendees, and will present over 1,000 research works over its duration. As well as being an opportunity to share pioneering research ideas and developments, the conference is also an excellent networking and publicity event, giving the opportunity for businesses and clients to link together, and presenting the scope for companies to publicise themselves and their products among the leaders of communications industries from all over the world.

  • ICC 2014 - 2014 IEEE International Conference on Communications

    The International Conference on Communications (ICC) is one of the two flagship conferences of the IEEE Communications Society, together with IEEE Globecom. Each year the ICC conference attracts about 2-3.000 submitted scientific papers, a technical program committee involving about 1.500 experts provides more than 10.000 reviews, the conference being finally attended by 1.500 - 2.000 professionals from all around the world. IEEE ICC is therefore one of the most significant scientific events of the networking and communications community, a must-attend forum for both industrials and academics working in this area.

  • ICC 2013 - 2013 IEEE International Conference on Communications

    A full programs of technical and professional activities spanning the entire range of hot topics in voice, data, image, quality of service, home networking, signal processing, wireless, optical, and multimedia communications

  • ICC 2012 - 2012 IEEE International Conference on Communications

    Full programs of technical and professional activities spanning the entire range of hot topics in voice, data, image, quality of service, home networking, signal processing, wireless, optical, and multimedia communications

  • ICC 2011 - 2011 IEEE International Conference on Communications

    A full programs of technical and professional activities spanning the entire range of hot topics in voice, data, image, quality of service, home networking, signal processing, wireless, optical, and multimedia communications.

  • ICC 2010 - 2010 IEEE International Conference on Communications

    Telecommunications

  • ICC 2009 - 2009 IEEE International Conference on Communications

  • ICC 2008 - 2008 IEEE International Conference on Communications

  • ICC 2007 - 2007 IEEE International Conference on Communications


2014 IEEE 80th Vehicular Technology Conference (VTC Fall)

VTC will bring together individuals from academia, industry and government to discuss and exchange ideas in the fields of mobile, wireless and vehicular technology as well as the applications and services associated with such technology. Features include world-class plenary speakers, panel sessions, tutorials, and both technical and application-based sessions.


2013 IEEE 77th Vehicular Technology Conference (VTC Spring)

VTC will bring together individuals from academia, industry and government to discuss and exchange ideas in the fields of mobile, wireless and vehicular technology as well as the applications and services associated with such technology. Features include world-class plenary speakers, panel sessions, tutorials, and both technical and application-based sessions.


TENCON 2013 - 2013 IEEE Region 10 Conference

Communication and network,Signal and information processing,Automatic control,Computational intelligence,Intelligent transportation,Grid and cloud computing,Cognitive radio and system,Internet of things,Computer science and technology,Audio and speech processing,Electronic devices,Circuits and systems,Power and energy,Microwave, antennas and propagation,Information and data security,System design and implementation

  • TENCON 2012 - 2012 IEEE Region 10 Conference

    TENCON is a general engineering conference covering electrical and electronics engineering and computer science. The theme of the conference is "Sustainable Development through Humanitarian Technology". The conference will be organized under several different tracks consisting of power engineering, signal processing, communications, computing, circuits and systems, software systems and the theme.

  • TENCON 2011 - 2011 IEEE Region 10 Conference

    Trends and Development in Converging Technology towards 2020

  • TENCON 2010 - 2010 IEEE Region 10 Conference

    Information and Communication Technologies

  • TENCON 2009 - 2009 IEEE Region 10 Conference

    The theme of the conference is "Emerging Technologies for Sustainable Development". Topics of interest include, but are not limited to, Power and Energy; Signal Processing; Networks and Communications; Circuits and Systems; Computational Intelligence; Computing Architectures & Systems; Software and Database Systems.

  • TENCON 2008 - 2008 IEEE Region 10 Conference

    TENCON 2008 is a general engineering conference covering electrical and electronics engineering and computer science. The theme of the conference is 'innovative technologies for societal transformation'. The conference will be organized under seven different tracks consisting of power engineering, signal processing, communications, computing, circuits and systems, software systems and the theme.

  • TENCON 2007 - 2007 IEEE Region 10 Conference

    Computing, Communications, Signal Processing, Energy & Infrastructure, Antennas and Propagation, System-on-Chip, Computer Networks, Optical Electronics , Technology & Society

  • TENCON 2006 - 2006 IEEE Region 10 Conference

  • TENCON 2005 - 2005 IEEE Region 10 Conference


2012 IEEE International Conference on Communication Systems (ICCS)

The following and related areas in Information and Communication Engineering: green communications, antennas and propagation, wireless networks, data security, communication theory, information theory, signal processing, data centre networks, optical communications, satellite communications, smart grid communications.

  • 2010 IEEE International Conference on Communication Systems (ICCS)

    Antennas, propagation & channel modeling Cognitive radio Dynamic spectrum management Green communication technologies & Systems Information theory Medical ICT systems Microwave devices & systems Mobile radio communication systems Modulation & coding Network architecture and security Optical communications & photonics Resource allocation, mobility management & QoS provisioning Satellite communications Signal processing for communications Space time processing & MIMO systems Ultra wideband tech

  • 2008 11th IEEE Singapore International Conference on Communication Systems (ICCS)

    Antennas, propagation & channel modeling, Cognitive radio, High speed networks, Information theory, Microwave devices & systems, Mobile radio communication systems, Modulation & coding, Network architecture and security, Optical communications & photonics, Signal processing for communications, MIMO systems, Spread spectrum systems, Ultra wideband technology, Wireless ad-hoc & sensor networks.



Periodicals related to Downlink

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Signal Processing, IEEE Transactions on

The technology of transmission, recording, reproduction, processing, and measurement of speech; other audio-frequency waves and other signals by digital, electronic, electrical, acoustic, mechanical, and optical means; the components and systems to accomplish these and related aims; and the environmental, psychological, and physiological factors of thesetechnologies.




Xplore Articles related to Downlink

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User selection in the MIMO BC

Yohan Lejosne; Dirk Slock; Yi Yuan-Wu 2012 Proceedings of the 20th European Signal Processing Conference (EUSIPCO), 2012

It is well-known that user selection not only leads to multiuser diversity but also to decreased suboptimality of simple beamforming (BF) techniques compared to optimal Dirty Paper Coding (DPC) approaches in the Broadcast Channel (BC), otherwise called the multi-user (MU) downlink, in a cell with a base station and mobile terminals equipped with multiple antennas (MU-MIMO). User selection by exhaustive ...


Scheduling in Massive MIMO: User clustering and pilot assignment

Salah Eddine Hajri; Mohamad Assaad; Giuseppe Caire 2016 54th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2016

In this paper, we consider the problem of user scheduling and pilot assignment in TDD multicell multiuser Massive MIMO systems. While in TDD systems the channel is acquired using uplink pilots, we propose a scheme that utilizes additional downlink probing in order to improve the spectral efficiency. The idea is to dynamically assign mobile users to different clusters based on ...


Dual antenna LMMSE equalization using bad urban measured channel data in HSDPA multicode transmission

J. Mattila; V. Vuorinen 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, 2005

This paper discusses WCDMA mobile terminal receivers that employ dual-antenna LMMSE equalization in high speed downlink packet access (HSDPA) multicode transmission. The effects of fast fading and non-idealities, like branch power difference and correlation between the antennas, are taken into account by using measured impulse responses in the link simulations. The channel data correspond to difficult "bad urban" cellular environments. ...


A Mapping Scheme of Users to SCMA Layers for D2D Communications

Yanping Liu; Xuming Fang; Huali Yang; Xi Li; Qi Xiao; Shuangshuang An; Yan Luo; Dageng Chen 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016

Sparse code multiple access (SCMA) is a non- orthogonal multiple access scheme, which has been considered as one of the key 5G technologies to improve spectral efficiency. Moreover, device-to- device (D2D) communication is introduced as a vital technology component for 5G cellular communication system to improve spectral reuse. D2D communication combined with SCMA will be a significant part of 5G ...


Probabilistic resource allocation and scheduling for multiuser communication systems

M. Johansson Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE, 2001

This paper describes how resource allocation and scheduling of users in a multiuser communication system, such as UMTS, can be used to enhance system throughput. More specifically, it suggests a framework based on probability theory for allocating base stations and time slots in the downlink, in order to maximize the average throughput. The decisions are based on knowledge of future ...


More Xplore Articles

Educational Resources on Downlink

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eLearning

User selection in the MIMO BC

Yohan Lejosne; Dirk Slock; Yi Yuan-Wu 2012 Proceedings of the 20th European Signal Processing Conference (EUSIPCO), 2012

It is well-known that user selection not only leads to multiuser diversity but also to decreased suboptimality of simple beamforming (BF) techniques compared to optimal Dirty Paper Coding (DPC) approaches in the Broadcast Channel (BC), otherwise called the multi-user (MU) downlink, in a cell with a base station and mobile terminals equipped with multiple antennas (MU-MIMO). User selection by exhaustive ...


Scheduling in Massive MIMO: User clustering and pilot assignment

Salah Eddine Hajri; Mohamad Assaad; Giuseppe Caire 2016 54th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2016

In this paper, we consider the problem of user scheduling and pilot assignment in TDD multicell multiuser Massive MIMO systems. While in TDD systems the channel is acquired using uplink pilots, we propose a scheme that utilizes additional downlink probing in order to improve the spectral efficiency. The idea is to dynamically assign mobile users to different clusters based on ...


Dual antenna LMMSE equalization using bad urban measured channel data in HSDPA multicode transmission

J. Mattila; V. Vuorinen 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, 2005

This paper discusses WCDMA mobile terminal receivers that employ dual-antenna LMMSE equalization in high speed downlink packet access (HSDPA) multicode transmission. The effects of fast fading and non-idealities, like branch power difference and correlation between the antennas, are taken into account by using measured impulse responses in the link simulations. The channel data correspond to difficult "bad urban" cellular environments. ...


A Mapping Scheme of Users to SCMA Layers for D2D Communications

Yanping Liu; Xuming Fang; Huali Yang; Xi Li; Qi Xiao; Shuangshuang An; Yan Luo; Dageng Chen 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016

Sparse code multiple access (SCMA) is a non- orthogonal multiple access scheme, which has been considered as one of the key 5G technologies to improve spectral efficiency. Moreover, device-to- device (D2D) communication is introduced as a vital technology component for 5G cellular communication system to improve spectral reuse. D2D communication combined with SCMA will be a significant part of 5G ...


Probabilistic resource allocation and scheduling for multiuser communication systems

M. Johansson Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE, 2001

This paper describes how resource allocation and scheduling of users in a multiuser communication system, such as UMTS, can be used to enhance system throughput. More specifically, it suggests a framework based on probability theory for allocating base stations and time slots in the downlink, in order to maximize the average throughput. The decisions are based on knowledge of future ...


More eLearning Resources

IEEE-USA E-Books

  • Energy-efficient Resource Allocation in 5G with Application to D2D

    This chapter proposes the device-to-device (D2D) communication paradigm to better utilize the spectrum. The energy-efficient resource allocation problem in D2D systems for energy proportionality is considered as a case study for the application of the outlined sequential fractional programming algorithms. The chapter considers the downlink of an orthogonal frequency-division multiple-access (OFDMA) cellular network, where infrastructure-to-device (I2D) and D2D communications coexist and are coordinated. The resource allocation policy that will be derived aims at maximizing the global energy efficiency (GEE) of the coordinated I2D and D2D links. The chapter contains a description of the system model and the received signal model for the case of a D2D- enabled cellular system. It presents the two key performance measures namely the GEE and the weighted sum-rate (WSR). The chapter focuses back on the case study and presents the application of sequential fractional programming algorithms to the problem of resource allocation for a 5G cellular system with D2D communications.

  • Dynamic Planning in Green Networks

    This chapter investigates operation of green wireless networks by using a dynamic planning approach. These approaches are the major focus of the chapter. The chapter presents optimal energy¿¿?efficient and QoS¿¿?aware dynamic cell¿¿?zooming and BS¿¿?switching policies for dense small¿¿?cell deployment subject to constraints on user data rate requirements and outage probability. It dicusses a dynamic planning approach that can capture and balance the trade¿¿?off in energy efficiency between network operators (in the downlink) and mobile users (in the uplink). Several works have addressed energy¿¿?efficient cell¿¿?zooming mechanisms and sleep policies for heterogeneous networks with dense small¿¿?cell deployment. The chapter presents a dynamic planning approach to optimally associate users to access nodes (pico and macro BSs) by adjusting the coverage area of these BSs. It talks about an analytical model for optimizing the cell size in a dense macro¿¿?pico heterogeneous network to minimize energy consumption while maintaining the end user quality of service.

  • Reception of Spread Spectrum Signals in AWGN Channels

    In this chapter we review the fundamental concepts of the reception of signals transmitted over AWGN channels, first of all the reception of wideband signals transmitted over multiple access channels with additive white Gaussian noise. Our consideration is based on the Neyman-Pearson theory. We study coherent reception of uplink and downlink transmitted DS CDMA signals, differential phase-shift keying, and reception of FH SS signals.

  • Non-Orthogonal Multiple Access (NOMA): Concept and Design

    This chapter introduces the concept of non-orthogonal multiple access (NOMA) for both downlink and uplink channels, where it enables power-domain user multiplexing and the exploitation of the channel-gain difference among users in a cellular system, two features that were not exploited in current and past cellular systems. It also explains the interface-design aspects of NOMA, including multi-user scheduling and multi-user power control, and its combination with multiple-input, multiple-output (MIMO). For downlink NOMA, the chapter shows the link-level performance and system-level performance of NOMA combined with MIMO for OFDMA. For uplink NOMA, it presents a system-level performance comparison of NOMA with SC-frequency division multiple access (FDMA) and show the impact of fractional frequency reuse (FFR). The chapter provides the performance evaluation results based on computer simulations and the measurements obtained from the NOMA testbed. It presents NOMA testbed, the potential gains for both system-level and link-level simulations when NOMA is combined with SU-MIMO.

  • 3GPP LongTerm Evolution

    We describe the 3GPP Long Term Evolution (LTE) standard, a member of the IMT- Advanced family for fourth-generation cellular communications. The system consists of radio access network (RAN) and core network (System Architecture Evolution SAE or Enhanced Packet Core EPC). Layers of the transmission protocol range from Packet Data Convergence Protocol (PDCP) to Radio Link Control (RLC), MAC, and PHY. After an overview of the physical layer, the division of the time axis into frames, subframes, and slots is discussed. The modulation format is OFDM for the downlink, and single-carrier transmission with frequency domain equalization (SC-FDE) for the uplink. We define resource element and resource blocks (RB). Data are mapped onto physical resources by first mapping symbols onto virtual resource blocks (VRBs), and from there to physical resource blocks (PRBs). There exist two types of reference signals RS (pilot tones): demodulation RS, and sounding RS; both based on Chadoff-Zhu sequences. Error control coding includes cyclic redundancy check (CRC), convolutional codes or turbo codes, and Hybrid ARQ (HARQ). Multiple-antenna techniques include Alamouti codes, possibly combined with antenna selection, for transmit diversity and (open-loop or closed-loop) spatial multiplexing. LTE distinguishes between logical channels and physical channels (time/frequency resources). Logical subchannels include Traffic channels (DTCH, MTCH) and Control channels (BCCH, PCCH, CCCH, DCCH, MCH). These are then mapped, via certain transport channels, to the physical channels. Primary and secondary synchronization signals carry timing information and cell ID. We discuss control information associated with downlink shared channel and uplink signaling (uplink control information, random access, and control signaling for the uplink shared channel). We also describe physical layer procedures, including establishing of a connection, retransmission methods, scheduling, power control, and handover.

  • Galileo

    Galileo comprises a space segment, a ground segment, and a user segment. The fully deployed system consists of a minimum of 24 satellites and extensive worldwide ground infrastructure. This chapter provides a brief history of Galileo and provides detailed characteristics of Galileo signals. Galileo was designed to offer four navigation services as well as a search and rescue service. The Open Service (OS) provides signals for timing and positioning to anyone, free of user charges. The Safety-of-Life service (SoL) had originally been developed to provide assured integrity signals for timing and positioning. The GMS uses a global network of Galileo Sensor Stations (GSS) to monitor Galileo downlink signals for two purposes: measurement of orbit and clock offsets from each satellite, and monitoring the integrity of each signal. The chapter summarizes the frequency plan using what has become Galileo's notation.

  • Formulation and Analysis of the CoverageCapacity and MultiUser Interference Parameters in UMTS

    This chapter contains sections titled: The Multi-user Interference Interference Representation Dynamics of the Uplink Capacity Downlink Power-capacity Interaction Capacity Improvement Techniques Remarks in Conclusion References

  • MultiUser MIMO

    This chapter first discusses the capacity of the multi-user MIMO system that uses the multiple antennas in the downlink, from the base station to the multiple users, before moving on to present the pre-coded transmission schemes that allow the coordinated signal detection with interference cancellation on the receiver side. It also presents the ready-to-run MATLAB? programs for the simulation of multi-user MIMO transmission schemes.

  • Intelligent Antennas for Cellular Systems

    Base-station antenna arrays are a promising method for providing large capacity increases in cellular mobile radio systems. This article describes some of the basic ideas behind antenna arrays for both time-division and code- division multiple-access networks. This paper considers channel-modeling issues, uplink space-time receiver structures, and a range of suitable algorithms to operate them. The potential capacity gains that can be achieved with antenna arrays are discussed and, finally, the extension of these techniques to the downlink is introduced.

  • Multi¿¿?homing for a Green Downlink

    In a heterogeneous wireless medium, downlink multi¿¿?homing radio resource allocation can save power for network operators. In this context, two application scenarios can be distinguished. In the first scenario, the MT aggregates the offered radio resources from different networks to support a single (data hungry) application, while in the second scenario, the MT runs different applications using the radio resources assigned to different radio interfaces. This chapter discusses the challenging issues associated with each application scenario. It presents two downlink radio resource allocation mechanisms that address research issues for the two application scenarios. The downlink green communication problem is formulated as an asymmetric Nash bargain game to jointly allocate radio resources (bandwidth and power) from different networks to a set of MTs with multi¿¿?homing capabilities. The chapter also presents a minimum power consumption radio resource allocation algorithm for LTE/WiFi networks that takes into account the mutual IDC interference between LTE and WiFi.



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