Results 41 to 50 of about 1,397 (129)
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 ...
Kao, David T. H., Avestimehr, A. Salman
openaire +2 more sources
On the Degrees of Freedom of time correlated MISO broadcast channel with delayed CSIT [PDF]
, 2012 We consider the time correlated MISO broadcast channel where the transmitter has partial knowledge on the current channel state, in addition to delayed channel state information (CSI).
Gesbert, David +3 more
core +3 more sources
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
, 2012 arXiv admin note: substantial text overlap with arXiv:1205 ...
Chen, Jinyuan, Elia, Petros
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Secure Degrees-of-Freedom of the MIMO X Channel With Delayed CSIT
IEEE Wireless Communications Letters, 2021 In this paper, we study the secure degrees-of-freedom (SDoF) characterization for the multiple-input multiple-output (MIMO) X channel with confidential messages and delayed CSIT. In particular, we propose a transmission scheme, which can be regarded as a generalization of the state-of-the-art scheme without security and with delayed CSIT.
Tong Zhang, Rui Wang
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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
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
openaire +3 more sources
Interference and X Networks with Noisy Cooperation and Feedback
, 2012 The Gaussian $K$-user interference and $M\times K$ X channels are investigated with no instantaneous channel state information (CSI) at transmitters.
Abdoli, Mohammad Javad +2 more
core +1 more source
On the Degrees of freedom of the K-user MISO Interference Channel with imperfect delayed CSIT [PDF]
, 2014 This work investigates the degrees of freedom (DoF) of the K-user multiple-input single-output (MISO) interference channel (IC) with imperfect delayed channel state information at the transmitters (dCSIT).
Agustin, Adrian +2 more
core +1 more source