Throughput and Delay in Random Wireless Networks with Restricted Mobility

Computer Science – Information Theory

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

14 pages, 4 figures, submitted to IEEE Transactions on Information Theory

Scientific paper

Grossglauser and Tse (2001) introduced a mobile random network model where each node moves independently on a unit disk according to a stationary uniform distribution and showed that a throughput of $\Theta(1)$ is achievable. El Gamal, Mammen, Prabhakar and Shah (2004) showed that the delay associated with this throughput scales as $\Theta(n\log n)$, when each node moves according to an independent random walk. In a later work, Diggavi, Grossglauser and Tse (2002) considered a random network on a sphere with a restricted mobility model, where each node moves along a randomly chosen great circle on the unit sphere. They showed that even with this one-dimensional restriction on mobility, constant throughput scaling is achievable. Thus, this particular mobility restriction does not affect the throughput scaling. This raises the question whether this mobility restriction affects the delay scaling. This paper studies the delay scaling at $\Theta(1)$ throughput for a random network with restricted mobility. First, a variant of the scheme presented by Diggavi, Grossglauser and Tse (2002) is presented and it is shown to achieve $\Theta(1)$ throughput using different (and perhaps simpler) techniques. The exact order of delay scaling for this scheme is determined, somewhat surprisingly, to be of $\Theta(n\log n)$, which is the same as that without the mobility restriction. Thus, this particular mobility restriction \emph{does not} affect either the maximal throughput scaling or the corresponding delay scaling of the network. This happens because under this 1-D restriction, each node is in the proximity of every other node in essentially the same manner as without this restriction.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Throughput and Delay in Random Wireless Networks with Restricted Mobility 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 Throughput and Delay in Random Wireless Networks with Restricted Mobility, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Throughput and Delay in Random Wireless Networks with Restricted Mobility will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-138676

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.