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A novel information exchange scheme is proposed in this paper, which integrates Network Coding (NC) and Superposition Coding (SC) in two-way relay networks. The scheme focuses on the information exchange among more than two nodes through relay node in fewer time slots. Firstly, the Integrating Network Coding and Superposition Coding (INSC) scheme is proposed in scenarios with and without overhearing...
TCP protocol generally suffers from poor performance and network unfairness problems over multi-hop ad hoc networks. As designed for wired networks only, the legacy TCP always induces the over-reaction of network failure and hurts the quality of end-to-end connection in ad hoc networks. In this case, improvements have been proposed in the literature to help TCP to be aware of the different types of...
In this paper, we investigate the cooperative communication performance involving space-time block codes (STBC), channel coding, network code and turbo decoding in a wireless Ad-hoc network scenario where two relays are employed for communications from a number of senders to a common sink. To reduce bandwidth and achieve diversity gain, STBC is applied at the two relays. Based on whether network coding...
Geometric greedy routing uses (virtual) geographic point locations as addresses for the purposes of routing, while routing decisions are made by each node individually based only on local information. It requires that the network topology is greedily embedded in a metric space through assigning virtual coordinates to the nodes in the network. Recent research pointed out that such scheme is significantly...
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