A Greedy link scheduler for Wireless Networks having Gaussian Broadcast and Multiple Access Channels

Details A Greedy link scheduler for Wireless Networks having Gaussian Broadcast and Multiple Access Channels A Greedy link scheduler for Wireless Networks having Gaussian Broadcast and Multiple Access Channels

2010-02-17

arxiv.org/abs/1002.3229v2

Computer Science

Networking and Internet Architecture

Accepted for publication in IEEE/ACM Transactions on Networking

Scientific paper

Information theoretic Broadcast Channels (BC) and Multiple Access Channels (MAC) enable a single node to transmit data simultaneously to multiple nodes, and multiple nodes to transmit data simultaneously to a single node respectively. In this paper, we address the problem of link scheduling in multihop wireless networks containing nodes with BC and MAC capabilities. We first propose an interference model that extends protocol interference models, originally designed for point to point channels, to include the possibility of BC and MAC. Due to the high complexity of optimal link schedulers, we introduce the Multiuser Greedy Maximum Weight algorithm for link scheduling in multihop wireless networks containing BCs and MACs. Given a network graph, we develop new local pooling conditions and show that the performance of our algorithm can be fully characterized using the associated parameter, the multiuser local pooling factor. We provide examples of some network graphs, on which we apply local pooling conditions and derive the multiuser local pooling factor. We prove optimality of our algorithm in tree networks and show that the exploitation of BCs and MACs improve the throughput performance considerably in multihop wireless networks.

Affiliated with

Also associated with

No associations

Rating

A Greedy link scheduler for Wireless Networks having Gaussian Broadcast and Multiple Access Channels does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Greedy link scheduler for Wireless Networks having Gaussian Broadcast and Multiple Access Channels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Greedy link scheduler for Wireless Networks having Gaussian Broadcast and Multiple Access Channels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-51762