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Content Provider | IEEE Xplore Digital Library |
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Author | Elfituri, M. Gheryani, M. |
Copyright Year | 2012 |
Description | Author affiliation: Department of Communication Engineering, Collage of Electrical and Electronic Technology, Benghazi, Libya (Elfituri, M.) || Department of Electrical and Computer Engineering, Concordia University, Montreal, Canada (Gheryani, M.) |
Abstract | This paper proposes a coding scheme for cooperative networks in the non-ideal case with system imperfections where the source and relays share their antennas to create a virtual transmit array to transmit towards their destination. We focus on the problem of coding for the relay channels. While the relays may use several forwarding strategies, including amplify-and-forward (AF) and decode-and-forward (DF), we focus on coded DF relaying. In particular, we consider the case when all the nodes estimate the channel state information in the transmission process. We derive upper bounded expressions for the bit error rate (BER) assuming M-ary phase shift keying (M-PSK) transmission. It is shown that the performance is degraded due to the presence of channel estimation error. However, the observations made in ideal scenarios still hold for the non-ideal case. Also our analytical results have shown that a performance close to perfect channel knowledge can be obtained when the number of pilot symbols kp increases. Also, with kp pilot symbols, the performance was shown to approach the perfect channel knowledge case at high pilot to noise ratio (PNR) (Eb/N0). Finally, at low PNR, the proposed scheme cannot provide significant performance improvements. |
Starting Page | 170 |
Ending Page | 175 |
File Size | 243767 |
Page Count | 6 |
File Format | |
ISBN | 9781467331142 |
e-ISBN | 9781467331166 |
DOI | 10.1109/APACE.2012.6457654 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2012-12-11 |
Publisher Place | Malaysia |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | cooperative networks channel estimation Conferences signal-to-noise relay channels Decode-and-forward Electromagnetics |
Content Type | Text |
Resource Type | Article |
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