Performance Analysis Of Full Duplex Wireless Relay Network Based On Compression And Forwarding Protocol

In-band full-duplex(IBFD) utilizes self-interference cancellation(SIC) technologies for transmitting and receiving on the same frequency band at the same time, it has the potential to double the spectrum efficiency. Cooperative communication(CC) which transmits with the relay nodes' cooperation, is able to improve coverage and eliminate the shadow area, and improve the communication reliability. Combination of the IBFD and CC in wireless relay networks should enhance the advantage of wireless cooperative communication, and increase the efficiency of forwarding and achieve lower end-to-end delay via full-duplex nodes. But different relay modes yield different performances between FD and half-duplex(HD) networks, the residual self-interference(RSI) still influences the network while relay nodes transmit and receive on the same frequency band at the same time. This thesis focuses on FD wireless communication network, analyzes the performance of two-hop and multi-hop networks with compress-and-forward(CF) protocol. The main contents are as follows:(1)Evaluation on the performance of two-hop compress-and-forward full-duplex relaying(CF-FDR). Primarily, the channel model and signal model are built, and a closed-form for the end-to-end outage probability is derived, also we simulate the outage performance on Matlab. The study shows that the transmit power of source node and relay node has a great effect on outage probability, that the end-to-end outage probability decreases with the node's transmit power increment. However the outage probability yields lower reduction in high transmit power region. The outage probability also decreases as the transmission rates increases, and HD mode outperforms FD mode in low rate region due to the quantization noise for CF, but the FD mode has a better performance as the rate becomes higher. Because of the cooperative diversity, the outage performance of CF protocol is outperformed by SDF protocol while it outperforms DF protocol. The channel gain of R-D link significantly affects the outage performance, and FD mode performs better than HD.(2)Evaluation on the performance of multi-hop CF-FDR. First we build the channel model and signal model of multi-hop system, derive an approximate closed-form for the end-to-end outage probability, and simulate the outage performance on Matlab at last. The study shows that when the signal-to-noise ratio(SNR) raises, the outage probability which yields lower reduction in high SNR region decreases. With CF protocol, as SNR increases, FD mode outperforms HD. Due to the different the relay SNRs, the nodes' number and the path-loss plays an important role in outage performance. In conclusion, minimum outage probability requires exact solution of optimal relay node number.