Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Proceedings of the 10th annual international conference on Mobile computing and networking
Proceedings of the 11th annual international conference on Mobile computing and networking
Distributed channel management in uncoordinated wireless environments
Proceedings of the 12th annual international conference on Mobile computing and networking
Component based channel assignment in single radio, multi-channel ad hoc networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Traffic-aware channel assignment in wireless LANs
ACM SIGMOBILE Mobile Computing and Communications Review
Superimposed code based channel assignment in multi-radio multi-channel wireless mesh networks
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Allocating dynamic time-spectrum blocks in cognitive radio networks
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
Hi-index | 0.00 |
In traditional wireless networks, nodes use only a single channel per radio interface, thus limiting the overall channel diversity of the network. This restriction is due to the inherent limitations of commercially-available RF devices. With the advent of high-bandwidth software-defined radios (SDRs), we now have the option of assigning multiple contiguous, independent channels to a single wireless interface. This new-found opportunity raises an important question: how do we assign contiguous channels to nodes in order to maximize overall network throughput? This question lies at the often-ignored intersection of single-radio-multi-channel and multi-radio-multi-channel assignment schemes. In this paper, we develop a protocol that assigns contiguous channels with the goal of evenly spreading the load across the multiple channels. Neighboring nodes greedily adjust their channel ranges according to channel conditions to achieve an overall pattern of partially-overlapping bandwidths that maximizes the network throughput. The end-result is a network that can dynamically adapt its bandwidth usage to the network load and the conditions of the different channels. The proposed protocol is evaluated with a prototype built upon the USRP as well as with detailed simulation.