Error propagation mitigation for wireless network coding

A Review on Minimization of BER and Power of Ad hoc Network

“…In future this work can be implemented on nonlinear or non binary coding symbol to investigate the BER with the same technique. Cooperative diversity [14] has been proposed as an implementation for WLAN where terminals are restricted to using physical arrays, this technique can implements space diversity by creating virtual antennas array with cooperating nodes in order to combat multi path fading by the use of NC over some scenarios in relay networks in order to mitigate the propagation errors in WLAN that maximizes throughput. Adaptive scheme performs better than a simple and Amplify Forward (AF) scheme because the relay does not transmit unreliable packets.…”

“…The use of relay diversity but still this is not as good as the transmit diversity bound. If compare the work of [10], [13] and [14] then optimized BER to reduce the transmit power achieved from [14] which is better than other two because optimize BER is less as compared in [10] and in [13].…”

“…BPSK [13] 10 -6 at 11 dB SNR Improves BER in noisy channel increase more power saving can be use in cross network and physical layer design. BPSK, QPSK [14] 10 -7 at 30 dB with transmitter diversity and from AF scheme 10 -5 at 30 dB Less improve BER than AF scheme reduce power saving as in work of [13].…”

Wireless Network Coding with Cooperative Diversity

“…• Forwarding strategy (1) Amplify-and-Forward: The received signal at the relay is amplified by the factor β before retransmission. The factor β is selected in such a way as to satisfy a given power constraint.…”

“…This paper integrates the ideas of network coding and relays proposed by Alban and Magaña [1] to an existing practical network architecture used in a wireless network scenario. Specifically, we are interested in the COPE architecture proposed in [10].…”