Results 221 to 230 of about 210,020 (266)
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Network-Coded Cooperation With Outdated CSI
IEEE Communications Letters, 2018The impact of outdated channel state information (CSI) on the performance of multiple-source, multiple-relay network-coded cooperation (NCC) with relay selection (RS) is investigated. In RS-based NCC, $K$ relays are selected (from $M$ cooperative relays).
Ali Reza Heidarpour +2 more
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A Novel Network-Coding-Based Coded Cooperation Scheme
2009 IEEE Wireless Communications and Networking Conference, 2009Coded Cooperation (CC) is a promising user co-operation scheme. In this paper, we propose a novel networ-kcoding-based coded cooperation scheme. When a user decodes its partner's information correctly in the first frame, it transmits the combination of the partner's parity bits and its own parity bits through network coding in the second frame. This is
Jinkang Zhu
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Enhanced Adaptive Network Coded Cooperation for Wireless Networks
IEEE Transactions on Vehicular Technology, 2018Adaptive network coded cooperation (ANCC) provides a general coded cooperation framework to map the communication connections of a wireless network into the coding constraint. However, random selection policy is assumed at each node to select its retrieval subset, which cannot avoid illness in code graph at the sink.
Hui Wang +2 more
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Cooperative coding for wireless networks
4th International Workshop on Mobile and Wireless Communications Network, 2003User-cooperation represents an effective way of introducing diversity in wireless networks. Spatial diversity gains are obtained through the cooperation of mobile users and the use of the partner's antenna. In this paper, we design channel codes that are capable of achieving the full diversity provided by user-cooperation, with the constraint that they
Andrej Stefanov, Elza Erkip
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Network coding in cooperative relay networks
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008Network coding is seen as a promising technique to improve network throughput. In this paper, network coding in cooperative relay networks and user cooperative networks is investigated and an optimized power allocation scheme is provided. By comparing with traditional relay forwarding in a simple two-user scenario, network coding shows a better system ...
Yuexin Wang +4 more
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Network-Coded Cooperative Systems in Cognitive Radio Networks
IEEE Transactions on Wireless Communications, 2022We study the performance of a network-coded cooperative (NCC) system in an underlay cognitive radio network (CRN). The primary network (PN) consists of a single transmitter-receiver pair, and the secondary network (SN) is an NCC system with $N$ users, $M$ relays, and a single destination.
Ali Reza Heidarpour +3 more
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On the Overhead of Telescopic Codes in Network Coded Cooperation
2015 IEEE 82nd Vehicular Technology Conference (VTC2015-Fall), 2015Although Random Linear Network Coding (RLNC) has been shown to reduce the number of transmissions for multi-cast scenarios, there is an inherent signaling overhead to achieve this benefit. Employing a large field result in less transmissions but at the cost of a large coding vector of coefficients.
Néstor J. Hernández Marcano +3 more
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Network coded noncoherent cooperative communications
2014 22nd Signal Processing and Communications Applications Conference (SIU), 2014In recent years, network coding has received significant attention as an innovative approach that improves the spectral efficiency of wireless communication systems. The Multiple Access Relay Channel (MARC) where multiple users communicate with a common destination via a relay, is one of the important network coding applications in wireless cooperative
Muhammet Ali Karabulut +2 more
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Cooperative Channelization in Wireless Networks with Network Coding
IEEE Transactions on Parallel and Distributed Systems, 2011In this paper, we address congestion of multicast traffic in multihop wireless networks through a combination of network coding and resource reservation. Network coding reduces the number of transmissions required in multicast flows, thus allowing a network to approach its multicast capacity.
Raju Kumar, Thomas La Porta
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Opportunistic Network-Coded Cooperation in Wireless Networks
2007 IEEE Wireless Communications and Networking Conference, 2007This paper proposed an opportunistic network-coded cooperation (ONCC) scheme suitable for multiple unicast transmission pairs in a single-cell wireless network. In contrast to existing work related to network-coded cooperation where the relay always performs network-coding-and-forwarding to help those transmitting terminals, ONCC is opportunistic ...
Cong Peng 0007 +3 more
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