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Network coding is a promising technique to improve the performance of wireless networks. In this paper, we establish the hexagram polling network model and propose a network coding scheme applied in this network. Based on the fact that one of the lost data blocks in a certain polling round may be recovered by the network coded data block, we establish a group of linear equations. Then we compute the...
This article presents a hierarchical cooperative relay-based heterogeneous network (HCRHeNet) to support both unicast and multicast services, where hierarchical cooperative relay nodes are deployed to provide a cost-effective coverage extension based on the convergence of heterogeneous radio networks. The underlined HCR-HeNet divides its coverage into three layers: hierarchical cooperative basic layer,...
Considering a cooperative multicast system where 2 sources transmit data to 2 users with the help of 1 relay (2-1-2), the performance of a network coded cooperative (NCC)transmission scheme is evaluated. Due to the use of network coding, more than one source node can be served simultaneously by one cooperative transmission. As a result, the time resource consumed by the cooperative transmission is...
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