Design And Implementation Of Physical Layer Control Channel For High-performance Mobile Ad Hoc Network

The mobile ad hoc network has been widely and actively concerned in the research field and application industry due to its outstanding characteristics of fast networking,flexible expansion,stable and anti-destructive.The existing wireless self-organization application nework still have many deficiencies in wireless transmission performance,network node side,environmental universality and network mobile application capabilities,which cannot meet the diverse needs of various applications.Aiming at the specific application requirements of related industries,this paper has carried out the research,design and development work on new highperformance mobile ad hoc networks with high transmission rate,low latency and supporting node movement.Starting from practical application requirements,the physical layer frame structure was designed,as well as the key technical solutions of the physical layer control channel ware designed in detail in the thesis by the comprehensively researching,which aims at realizing the physical layer data transmission with high-rate,low-latency and high-reliability by according to the overall functions,performance and characteristics of the high-performance mobile ad hoc network system.By the way,the particular design and development work on the synchronization and BCH codec function modules were carried out.Based on the wireless burst communication characteristics and physical layer performance requirements of the high-performance mobile ad hoc network system,a time-domain synchronization algorithm was proposed in the paper.Compared with the classic Schdmil & Cox synchronization algorithm(SC algorithm),only one auxiliary sequence with removal CP was used in this algorithm for symbol synchronization and frequency synchronization.The simulation results show that the "platform effect" problem in the SC algorithm is solved by the proposed synchronization algorithm,synchronization performance is effectively improved,and the calculation complexity is reduced.According to the high reliability requirements of the research and development system for signaling information,a specific research on the LDPC and BCH concatenated coding used in the physical layer control channel was conducted,and the BCH(1440,967)encoding scheme adapted to the physical layer transmission structure was given.The simulation results show that the designed BCH scheme has good error correction performance and meets the practical applications.Based on the HLS platform,the functional hardware implementation design and optimization for the designed synchronization algorithm and BCH codec algorithm were developed.The implementation results show that the designed and developed algorithm achieves correct function and high performance,and all meet the design requirements of the corresponding functional module of the physical layer of the high-performance mobile ad hoc network system.The research,design and development work and results of the thesis not only have innovative contribution and practical value to the research and development of highperformance mobile ad hoc network systems,but also have certain reference significance and application value to the research and development of related communication technologies.