Mobility increases the capacity of ad hoc wireless networks
Tóm tắt
The capacity of ad hoc wireless networks is constrained by the mutual interference of concurrent transmissions between nodes. We study a model of an ad hoc network where n nodes communicate in random source-destination pairs. These nodes are assumed to be mobile. We examine the per-session throughput for applications with loose delay constraints, such that the topology changes over the time-scale of packet delivery. Under this assumption, the per-user throughput can increase dramatically when nodes are mobile rather than fixed. This improvement can be achieved by exploiting a form of multiuser diversity via packet relaying.
Từ khóa
#Wireless networks #Diversity reception #Base stations #Delay #Throughput #Fading #Interference constraints #Network topology #Cellular networks #Diversity methodsTài liệu tham khảo
frenkiel, 1999, The infostations challenge Balancing cost and ubiquity in delivering wireless data
feller, 1971, An Introduction to Probability Theory and Its Applications, ii
10.1109/18.825799
shepard, 1996, a channel access scheme for large dense packet radio networks, Proc ACM Sigcomm, 219, 10.1145/248157.248176
10.1109/ISIT.1997.612942
10.1109/18.641562
10.1109/ICC.1995.525188
10.1109/26.554374
10.1109/ISIT.2002.1023624
samorodnitsky, 1994, Stable Non-Gaussian Random Processes
david, 1981, Order Statistics