Ad-hoc Resource Allocation Technology Over Wireless In-band Full-duplex Shared Channel

Wireless In-Band Full-Duplex(IBFD)communication enables bidirectional simultaneous transmission of datat in the same frequency band,which theoretically doubles the system spectrum efficiency and improves system throughput.All of this is due to the continuous development of seflinterference cancellation technology in IBFD systems.In the thesis,the IBFD system throughput model is established for the Ad Hoc networking environment,and the system capacity is analyzed in combination with the node distribution scenario.The main content and innovation of the thesis are as follows:Firstly,the self-interference cancellation technology and MAC layer control method of IBFD are analyzed.The technical characteristics of half-duplex(HD),bidirectional full-duplex(BFD),and full-duplex relay(FDR)are discussed.The mathematical expressions of the optimal problem are given with the goal of maximizing the system capacity,combining the interference constraints of different transmission modes.Secondly,the gain of the IBFD system capacity relative to the HD system under different node numbers is analyzed.The results show that compared with HD,IBFD can increase system capacity by 1.6 times.The thesis further considers the non-ideal self-interference cancellation and finds that the throughput of the IBFD system is always better than the half-duplex system when the selfinterference cancellation level is higher than 90 dB.Finally,the thesis develops an application scene of node random distribution.The numerical simulation method and the calculation flow of the model under gaussian markov random distribution are given.And the capacity gain of the full-duplex system under power control is analyzed.The results show that under power control,the system's capacity has an average gain of 13% and the system's energy consumption is also reduced.