Maximizing Reliability of Multihop Cognitive Radio Network |
Author(s): |
| Naveen Chandra Arya , BTKIT DWARAHAT, ALMORA; Lalit Singh Garia, BTKIT DWARAHAT, ALMORA |
Keywords: |
| Cognitive Relay (CR), Decode Amplify-and-Forward (DAF), Decode-And-Forward (DF), Hybrid Combiner (SC/MRC) |
Abstract |
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In this paper, Performance of a cognitive radio with the help of a multi-antenna based cognitive relay (CR) is proposed. The best relay selection strategy is analyzed in presence of Rayleigh fading channel. The hybrid combining (SC/MRC) employs at the output, the signals received from multiple receiving antenna via cognitive relay (CR), The relay received and forwards the signal to secondary user destination (D) using some relay strategy like: Decode Amplify-and-Forward (DAF) for dual hop system and Decode Amplify-and-Forward (DAF) and then Amplify-and-Forward (AF) strategy for more than two hop relaying network. In multi-hop environment comparison of BER has been evaluated, between dual hop (DAF) vs three hop (DAF and AF), and also between hybrid combining (SC/MRC) and Maximal ratio combiner. |
Other Details |
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Paper ID: IJSRDV5I80378 Published in: Volume : 5, Issue : 8 Publication Date: 01/11/2017 Page(s): 384-387 |
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