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The combination of multiple-input multiple-output (MIMO) and Space-Time Block Coding (STBC) is a potential solution for increasing throughput and reliability in data transmission. A pipelined architecture for a Schnorr-Euchner algorithm based sphere decoder used in STBC systems is proposed in this paper. The architecture was designed for a 2×2 antenna system with 16-quadrature amplitude modulation...
Delay Tolerant Networks (DTNs) are sparse mobile ad-hoc networks in which there is typically no complete path between the source and the destination. Data routing in DTNs is challenging, and has attracted much attention from the research community. Although many routing schemes have been proposed, they do not address the fairness issue in data delivery to different destination nodes. In this paper,...
The emergence of cognitive radio network technology provides network nodes with abundant licensed and unlicensed channels to select for routing. Traditional routing methods that minimize hop count often do not leverage the full capabilities of cognitive radio users. They may select high lossy links or choose arbitrarily among the different paths of the same minimum length, regardless of the often...
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