Dynamic Bit Allocation for Object Tracking in Bandwidth Limited Sensor Networks

Details Dynamic Bit Allocation for Object Tracking in Bandwidth Limited Sensor Networks Dynamic Bit Allocation for Object Tracking in Bandwidth Limited Sensor Networks

2011-10-21

arxiv.org/abs/1110.5342v1

Statistics

Applications

Original manusprit is submitted to IEEE Transactions on Signal Processing. Part of this work was presented at the Fusion'11 co

Scientific paper

In this paper, we study the target tracking problem in wireless sensor networks (WSNs) using quantized sensor measurements under limited bandwidth availability. At each time step of tracking, the available bandwidth $R$ needs to be distributed among the $N$ sensors in the WSN for the next time step. The optimal solution for the bandwidth allocation problem can be obtained by using a combinatorial search which may become computationally prohibitive for large $N$ and $R$. Therefore, we develop two new computationally efficient suboptimal bandwidth distribution algorithms which are based on convex relaxation and approximate dynamic programming (A-DP). We compare the mean squared error (MSE) and computational complexity performances of convex relaxation and A-DP with other existing suboptimal bandwidth distribution schemes based on generalized Breiman, Friedman, Olshen, and Stone (GBFOS) algorithm and greedy search. Simulation results show that, A-DP, convex optimization and GBFOS yield similar MSE performance, which is very close to that based on the optimal exhaustive search approach and they outperform greedy search and nearest neighbor based bandwidth allocation approaches significantly. Computationally, A-DP is more efficient than the bandwidth allocation schemes based on convex relaxation and GBFOS, especially for a large sensor network.

Affiliated with

Also associated with

No associations

Rating

Dynamic Bit Allocation for Object Tracking in Bandwidth Limited Sensor Networks 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 Dynamic Bit Allocation for Object Tracking in Bandwidth Limited Sensor Networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic Bit Allocation for Object Tracking in Bandwidth Limited Sensor Networks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-86025