Results 11 to 20 of about 476,199 (158)
Block Diagonalization in the MIMO Broadcast Channel with Delayed CSIT
GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009 This paper investigates the impact of delayed channel state information at the transmitter (CSIT) on the MIMO broadcast channel with block diagonalization (BD) precoding. First, an upper bound for the achievable throughput is provided, which shows that BD is more robust to imperfect CSIT than zeroforcing precoding as it has fewer inter-user interfering
Jun Zhang 0004 +2 more
openaire +3 more sources
On multi-user MISO wiretap channels with delayed CSIT
2014 IEEE International Symposium on Information Theory, 2014 The multiple-input single-output (MISO) wiretap channel with K legitimate single-antenna receivers, one single-antenna eavesdropper in presence of delayed channel state information at the transmitter (CSIT) is considered. The transmitter is equipped with (K+1) antennas and has independent messages intended for each one of the K legitimate receivers ...
Ravi Tandon +2 more
openaire +2 more sources
The Generalized Degrees-of-Freedom of the Asymmetric Interference Channel with Delayed CSIT [PDF]
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
core +5 more sources
On degrees of freedom of layered two unicast networks with delayed CSIT
2012 IEEE International Symposium on Information Theory Proceedings, 2012 In this paper we study the two unicast information flow problem over layered Gaussian networks with arbitrary number of nodes and connectivity, under the model of delayed channel state information (CSI) at transmitters and instantaneous CSI at receivers.
Wang I.-H., Diggavi S.
openaire +3 more sources
Cross-layer design for single-cell OFDMA systems with heterogeneous QoS and partial CSIT [PDF]
, 2009 — This paper proposes a novel cross-layer scheduling scheme for a single-cell orthogonal frequency division multiple access (OFDMA) wireless system with partial channel state information (CSI) at transmitter (CSIT) and heterogeneous user delay ...
Charilaos Zarakovitis +8 more
core +7 more sources
Blind wiretap channel with delayed CSIT [PDF]
2014 IEEE International Symposium on Information Theory, 2014 This work has been presented in part at the IEEE International Symposium on Information Theory 2014 and IEEE Globecom ...
Sina Lashgari, Amir Salman Avestimehr
openaire +5 more sources
Outage behavior with delay and CSIT [PDF]
2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577), 2004 The packet outage probability for fading channels can be significantly reduced by exploiting queuing delay and transmitter channel information is demonstrated in this paper. Queuing delay gain is conceptually similar to delay diversity, but at a packet time-scale instead of symbol time-scale.
Dinesh Rajan +2 more
openaire +2 more sources
Uplink Multiple Access for Reconfigurable Intelligent Surface‐Aided Wireless Systems
Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022 The integration of reconfigurable intelligent surface‐ (RIS‐) aided wireless communication and multiple access is an attractive and promising scheme for next‐generation wireless networks. In this research work, separate uplink RIS‐aided nonorthogonal multiple access (NOMA) and uplink relay‐assisted NOMA schemes are studied, where the RIS and relay ...
Nhan Duc Nguyen +3 more
wiley +1 more source
Fairness‐Oriented Transmission Schemes for Multiuser MISO Broadcast Channels
Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022 With the increasing number of Internet of Things (IoT), Industry 4.0 (I4.0), and mobile devices, it can be expected that base stations will have to serve more and more clients with a limited number of antennas. For their broadcast channels, nonorthogonal multiple access (NOMA) and blind interference alignment (BIA) are two efficient and commonly ...
Jianjian Wu +5 more
wiley +1 more source
Energy Efficiency Strategy for Big Data in Cloud Environment Using Deep Reinforcement Learning
Mobile Information Systems, Volume 2022, Issue 1, 2022., 2022 Big data entails massive cloud resources for data processing and analysis, which consumes more energy to run. The resources and tasks are increasing exponentially in the cloud environment for the processing of big data, which results in an increment in power consumption to run the cloud data center. So, there is always a scope for optimizing the energy
Neeraj Kumar Pandey +6 more
wiley +1 more source