Research Progress on Initialization Problems of Directional Wireless Ad Hoc Network
Wireless Ad Hoc network is widely used in scenarios such as emergency communication and long-distance com-mand due to its very convenient establishment property,and diverse and flexible network architecture.Different from traditional wireless networks,wireless Ad Hoc network has the property of being fast to deploy and requiring no fixed base stations.In the process of network initialization,the use of directional antennas can not only expand the beam search range,but also ensure the security of information transmission.Based on the initialization process of directional wireless Ad Hoc network,this study summa-rizes the research status of antenna alignment,neighbor discovery,resource allocation,time synchronization,Medium Access Control layer protocol.Antenna alignment,as the primary problem to be solved in neighbor discovery,is the cornerstone of the entire directional wireless Ad Hoc network,the neighbor discovery problem and resource allocation problem are the key objects to be solved by the access layer protocol,the proportion of time slot and frequency resources occupied by the two determines the self-organizing efficiency of wireless Ad Hoc network,and time synchronization is important for time division multiple access,to-pology establishment and routing update.Through the discussion of the coordination mechanism of these technologies,readers can understand the importance of each branch technology to improve the efficiency of network initialization.The study is hoped to in-spire the in-depth research on the subsequent directional wireless Ad Hoc network.
wireless Ad Hoc networkneighbor discoveryantenna alignmentresource allocationsynchronous
万方数据
维普
