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Network coding (NC) has been shown to improve throughput, minimize delay and economize the energy requirements in wireless networks. This paper develops a non-random approach to wireless linear NC problem. The proposed approach works by "time-unwrapping" a wireless node to develop a wired-equivalent model that helps solve for the wireless NC through purely algebraic arguments. It incorporate...
Network coding in wired networks has been shown to achieve considerable throughput gains relative to traditional routing networks. While the ergodic capacity of wireless multihop networks is unknown, the scaling of capacity with the number of nodes (n) has recently received increasing attention. While existing works mainly focus on networks with n source-destination pairs, this paper deals with capacity...
Network coding has been shown to improve throughput, minimize delay and economize the energy requirements in wireless networks. This paper presents an algebraic polyphase approach to the wireless linear network coding problem. By modeling wireless nodes as consisting of linear periodic time varying filters, the model incorporates realistic constraints including omni directionality of transmissions,...
Multi-source relay-based cooperative communications can achieve spatial diversity gains, enhance coverage and potentially increase capacity when multiuser detection is used to effect maximum likelihood demodulation. If considered for large networks, traditional relaying entails loss in spectral efficiency that can be mitigated through network coding at the physical layer. These considerations motivate...
Relay-based cooperative communications can achieve spatial diversity gains, enhance coverage and potentially increase capacity. If considered for large networks, traditional relaying schemes suffer from spectral inefficiency that can be improved through network coding at a physical layer. These considerations motivate the complex field network coding (CFNC) scheme proposed in this paper. As opposed...
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