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Two-way Wireless Relaying Networks (TWRNs) have attracted interest recently due to the substantial bandwidth efficiency and performance they can achieve. So far, most research has assumed perfect timing synchronization within the network. Unfortunately, perfect synchronization is difficult (or impossible) to achieve as a timing misalignment between the received versions of the two-way transmitted...
Most research on Distributed Space-Time Block Coding focus on utilizing 2 relaying nodes that are assumed to be permanently available. In the case where higher diversity order is available for utilization, maintaining full-rate become troublesome or the complexity of decoding will be increased significantly. In this paper a distributed full-rate encoding scheme is proposed that will achieve any order...
We focus on the uplink channel of multi-user wireless relaying networks in a coverage extension scenario. The network consists of two users, a single half duplex (HD) relay and a destination, all equipped with multiple antennas. Perfect channel state information (CSI) is assumed to be available exclusively at the receiving nodes (i.e., the relay and the destination) while the users are assumed to...
Substantial performance gain and a full coding rate can be achieved by utilizing a Closed-Loop Extended-Orthogonal Space-Time Block Coding (CL-EO-STBC) scheme in wireless relaying networks, referred to as D-CL-EO-STBC. So far, most research has focused on the perfect synchronization case and for only two-nodes wireless relaying networks. Unfortunately, perfect synchronization is difficult (or impossible)...
Most research dealing with the issue of imperfect synchronization in D-STBC cooperative networks assume that all relay nodes receive the symbols correctly while employing a decode and forward (DF) relaying protocol. It is an unrealistic assumption as detection errors at the relay nodes are inevitable. In this paper this assumption will be relaxed, and an amplify and forward (AF) protocol is used....
Most research on Distributed Space Time Block Coding (D-STBC) assumes perfect synchronization between the relays' transmissions. In this paper, we propose a Sequential Interference Cancellation (SIC) approach for the detection of D-STBC under Quasi-Synchronization. The numerical simulations, for SIC approach, showed that in just two iterations we can achieve performance close to the D-STBC with perfect...
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