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In this paper, distributed spatial modulation (DSM) is introduced. DSM is a cooperative diversity protocol for multirelay wireless networks, which is based on the concept of spatial modulation (SM). The distinguishable feature of DSM lies in improving the reliability of the source via distributed diversity and by increasing the aggregate throughput of the network since new data is transmitted during...
A cooperative IR (Incremental Redundancy) scheme in a three-node relay system is studied in this paper. The soft encoding at the relay is adopted to avoid the error propagation and improve the transmission efficiency. Alamouti coding is considered at the source and the relay to get cooperative transmitting diversity. We also derive the optimal IR LDPC codes by linear optimization of the whole code...
In this paper, we consider a new scheme based on jointly network and rateless coding for a multiple-access relay channel. In the scheme, whenever the relay can decode multiple messages of the users, it jointly encodes them using a larger rateless code. This scheme is compared with direct transmission and the conventional relaying scheme in which the relay helps each user independently at orthogonal...
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