Joint TAS/SC and power allocation for IAF relaying D2D cooperative networks
- 213 Downloads
In this paper, the outage probability (OP) performance of multiple-relay-based incremental amplify-and-forward relaying device-to-device networks with transmit antenna selection (TAS) over N-Nakagami fading channels is investigated. The exact closed-form expressions for OP of the optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated for performance optimization. Then the OP performance under different conditions is evaluated through numerical simulations to verify the analysis. The simulation results showed that optimal TAS scheme has a better OP performance than suboptimal TAS scheme, but the performance gap between the optimal and suboptimal schemes diminishes by increasing the number of antennas at the source; the fading coefficient, the number of cascaded components, the relative geometrical gain, the number of antennas, and the power-allocation parameter have an important influence on the OP performance.
KeywordsD2D communication N-Nakagami fading channels Incremental amplify-and-forward Outage probability Transmit antenna selection Power allocation
The authors would like to thank the referees and editors for providing very helpful comments and suggestions. This project was supported by National Natural Science Foundation of China (Nos. 61304222, 61301139), Natural Science Foundation of Shandong Province (No. ZR2012FQ021), Shandong Province Outstanding Young Scientist Award Fund (No. 2014BSE28032).