Research On Multi-radio Multi-channel Technology Based On Cellular Topology

Wireless sensor network is developing rapidly in today's growing society, the issues facing the network also will be the more to resolve network throughput approach is particularly important for the purpose of the development of this paper, This paper describes the Ad-hoc network based on multi-channel transmission technology, the network reference cellular network structure, the cellular network structure and the multi-channel technology combined, and added a multichannel network coding, by increasing the multi-channel technology makes multi-channel network node having a switching function which transport data through multichannel and also reduce the interference between different nodes.it can effectively improve the efficiency of network transmission, In this paper introduce a new algorithm with the name of CNMNC. The algorithm is a multi-channel technology with network coding combination, the channel allocation algorithm is to divide the like in a wireless network plane large channel circular region, different channel circular region using different channels of communication channel, such that in different regions node through different channels of communication to reduce transmission interference between channels.Cartesian coordinate system established by the relative position of nodes, while the coordinates of the circle drawn channel and distribution channel circular channel number,channel derived node where the coordinates of the circle through the compute nodes. In the plane dividing the channel circle the course, resulting in a convergence of regional and independent regional channel circular regions, which makes the communication process node can be set in two communication modes, namely, the use of multi-channel communication in the intersection area of the channel round the region, and single communication channel in a separate area, this hybrid strategy adopted to increase throughput of the network and reduce network energy consumption. The text of this CNMNC algorithm uses different regions to achieve a multi-channel distribution of radio frequencies.During transmission network, based on the multi-channel multi-radio network coding theory use half, after technical articles, the perception of potential opportunities to increase the number of encoded packets encoded in the data transfer process, so as to achieve maximum network traffic flow improve the network transmission efficiency and robustness.Network coding part CNMNC improvement is based on multi-channel COPE agreement proposed unconventional COPE protocol based on multi-hop network coding hop, so the ability to enhance the perception of network coding to improve network coding efficiency and reduce network latency, can effectively improve network throughput, and increased network security in the network transmission. In the last part, through simulation results obtained by the above method the network throughput significantly improved while reducing end to end delay.