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http://dx.doi.org/10.13067/JKIECS.2019.14.6.1061

Performance of Cooperative Networks with Differential Distributed Modulation using Mixed Signaling Scheme  

Cho, Woong (Dept. Computer Engineering, Jungwon University)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.14, no.6, 2019 , pp. 1061-1068 More about this Journal
Abstract
Cooperative networks transmit signals form the source node to the destination node via several relay node where the combining and demodulation of relay aided signals provide the benefit of performance enhancement and data rate increment. In general, a repetitive manner transmission scheme in which the received signal from the source node is amplified/re-generated and forward to the destination node is widely used. In this paper, we analyzed the performance of cooperative networks using the mixed transmission scheme. The conventional modulation scheme is used in the source-relay links, and space-time code is applied in the relay-destination links. To reduce the complexity of the overall system, we adopt differential modulation which bypasses channel state information. We analyze bit error rate (BER) of the proposed system by considering the number of relay nodes, and the performances depending on the strength of transmission signal in the source-relays and rely-destination links are compared. In addition, we also discuss the system performance with the signal strength and the number of relay nodes simultaneously.
Keywords
Cooperative Networks; Differential Modulation; Distributed Networks; Performance Analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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