Research On Capacity And Performance Of Wireless Multi-channel Multi-interface Networks

With the increasing hotspot access demands of Internet year by year, the limitedradio spectrum bandwidth has been unable to meet the needs of many wirelessapplications and thus restricts the deployment of high performance applications. Toaddress this problem, mobile devices that enable MCMI (Multi-ChannelMulti-Interface) have become increasingly important and drawn considerableattention. Under such circumstance, research on the capacity of such networks isessential. To efficiently utilize networks resource and maximize the network capacity,in this paper, we first capture the capacity bound of the networks that integrate threetechnologies (i.e., MCMI, multi-packet reception (MPR) and directional antenna (DA))in arbitrary and random wireless networks. The research shows that suchthree-technology networks can achieve at most2k/capacity gain in arbitrarynetworks and42k/2capacity gain in random networks compared with MCMIwireless networks without DA and MPR. This paper also explored and analyzed theimpact on the networks capacity gain with different c/m, and k-MPR ability.In addition, throughput and delay also play important roles in MCMI networks.In this paper, we build two queueing systems: M/M/m model and m-M/M/1model.We then investigate the relationship/tradeoff between them based on these twoqueueing systems. In the considered network model, we combined a series of detailednetwork configuration parameters (e.g., channel fading and routing path deviation) tomake the model more practical, which can provide more theoretical basis andsuggestions for practical network deployment.