Results 31 to 40 of about 137 (117)
A Survey on Robust Interference Management in Wireless Networks
Entropy, 2017 Recent advances in the characterization of fundamental limits on interference management in wireless networks and the discovery of new communication schemes on how to handle interference led to a better understanding towards the capacity of such networks.
Jaber Kakar, Aydin Sezgin
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Linear degrees of freedom of the MIMO X-channel with delayed CSIT [PDF]
2014 IEEE International Symposium on Information Theory, 2014 We study the degrees of freedom (DoF) of the multiple-input multiple-output X-channel (MIMO XC) with delayed channel state information at the transmitters (delayed CSIT), assuming linear coding strategies at the transmitters. We present two results: 1) the linear sum DoF for MIMO XC with general antenna configurations, and 2) the linear DoF region for ...
David T. H. Kao, Amir Salman Avestimehr
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Precoding Methods for the MISO Broadcast Channel with Delayed CSIT [PDF]
IEEE Transactions on Wireless Communications, 2013 Recent information theoretic results suggest that precoding on the multi-user downlink MIMO channel with delayed channel state information at the transmitter (CSIT) could lead to data rates much beyond the ones obtained without any CSIT, even in extreme situations when the delayed channel feedback is made totally obsolete by a feedback delay exceeding ...
Xinping Yi, David Gesbert
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CoRR, 2012 arXiv admin note: substantial text overlap with arXiv:1205 ...
Jinyuan Chen, Petros Elia
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The Generalized Degrees-of-Freedom of the Asymmetric Interference Channel with Delayed CSIT
2022 IEEE International Symposium on Information Theory (ISIT), 2022 In this paper, we investigate the generalized degrees-of-freedom (GDoF) of the asymmetric interference channel with delayed channel state information at the transmitter (CSIT), where each transmitter has two antennas, each receiver has one antenna, and the strength for each interfering link can vary.
Tong Zhang 0026, Yufan Zhuang, Yinfei Xu
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Secrecy Degrees of Freedom of MIMO Broadcast Channels With Delayed CSIT [PDF]
IEEE Transactions on Information Theory, 2013 The degrees of freedom (DoF) of the two-user Gaussian multiple-input and multiple-output (MIMO) broadcast channel with confidential message (BCC) is studied under the assumption that delayed channel state information (CSI) is available at the transmitter. We characterize the optimal secrecy DoF (SDoF) region and show that it can be achieved by a simple
Sheng Yang 0001 +3 more
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Wireless Communications and Mobile Computing, Volume 2019, Issue 1, 2019., 2019 In this era, the number of users in a network is increasing tremendously at a faster rate; as a consequence, quality of service (QoS) is drastically deteriorating. To compensate such kinds of problems, we attempted to enhance the QoS of the network, which leads to an improvement in throughput, link quality, spectral efficiency, and many more.
Shakti Raj Chopra +3 more
wiley +1 more source
Transceiver Designs for MIMO Relaying Systems with Imperfect Channel State Information
Mobile Information Systems, Volume 2018, Issue 1, 2018., 2018 We focus on imperfect channel state information (ICSI) in closed‐loop multiple‐input multiple‐output (MIMO) amplify‐and‐forward (AF) relaying systems. First, near‐optimal closed‐form solutions for transceiver designs are provided for the source‐to‐relay‐to‐destination link with ICSI at all nodes.
Bridget Durowaa Antwi-Boasiako +3 more
wiley +1 more source
Prolonging the Lifetime of Wireless Sensor Networks: A Review of Current Techniques
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 There has been an increase in research interest in wireless sensor networks (WSNs) as a result of the potential for their widespread use in many different areas like home automation, security, environmental monitoring, and many more. Despite the successes gained, the widespread adoption of WSNs particularly in remote and inaccessible places where their
Felicia Engmann +5 more
wiley +1 more source
Wireless Communications and Mobile Computing, Volume 2017, Issue 1, 2017., 2017 This paper addresses the performance analysis of an adaptive wireless link with one antenna transmitter and a multiple antenna maximum‐ratio combining (MRC) receiver. Two main assumptions are used in this paper: (1) Rayleigh fading correlated channels (i.e., MRC branch correlation) and (2) imperfect (outdated) channel state information at the ...
Ramiro Sámano-Robles +3 more
wiley +1 more source