Asymptotic Analysis For Multicasting In Wireless Networks

With the rapid development of wireless network technology, people are more and more convenient to access the internet through wireless. It can be prospected that this trend will be continuing, until we can acquire the required network resources at anytime anywhere. Therefore, currently the network scale is extending at an unprecedented speed. It becomes an imperative problem to recognize and analyze the fundamental characteristics, including the network capacity, average delay, energy consumption etc., for large scale wireless networks. Kumar and Gupta have once proposed a framework of asymptotic analysis, which provided an effective approach to address this issue.Compared to multiple unicast, mobile multicast is a more efficient way to disseminate message from one source to multiple destinations. It has been widely applied to the multimedia multicast and the military communication. The major work of this paper is investigating the capacity, delay, energy consumption as well as their tradeoffs for multicast in large scale wireless networks. To this end, we first review the definition of capacity and delay in ad hoc networks; and sort the results in the existing works. Afterwards, we study the performance of multicast from a variety of views: 1) multicast capacity in static networks; 2) multicast capacity in terms of different geometries; 3) the improvement by adopting hierarchical distributed cooperation technique; 4) the fundamental delay-capacity tradeoff for mobile multicast; 5) delay-capacity tradeoff with respect to different mobility patterns; 6) multicast performance when the base stations are added in.The main technical routing in the paper is asymptotic analysis. In addition, results obtained here are compared with that in the mobile unicast networks and static multicast networks. It will provide a sound guidance for the design and schedule in the large scale wireless networks.