Network-Coding-based Adaptive Decode and Forward Cooperative Transmission in a Wireless Network: Outage Analysis
نویسندگان
چکیده
In cooperative transmission users are allowed to share antennas to transmit their messages to a common destination. Users employ either amplify-and-forward or decodeand-forward strategies to forward each others’ messages. In network-coding-based cooperative transmission schemes, users are allowed to combine their own and their partner’s message by a network-coding operation. This work analysis the outage probability of a network-coding-based decodeand-forward cooperative transmission scheme, when non-ideal inter-user channels exist. A modulo-2 summation is used to implement the network coding, and transmissions are done using time division duplex channels. At the destination, identical messages are combined using either Selection combining or Maximum-Ratio combining. The numerical results show that a diversity order in the range of two can be obtained using this scheme, taking point-to-point transmission as a baseline. The work is extended to goodput analysis, based on feedback from the destination.
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