Name
Abstract | ||
|---|---|---|
Opportunistic selection in multi-node wireless systems improves system performance by selecting the “best” node and by using it for data transmission. In these systems, each node has a real-valued local metric, which is a measure of its ability to improve system performance. Our goal is to identify the best node, which has the largest metric. We propose, analyze, and optimize a new distributed, yet simple, node selection scheme that combines the timer scheme with power control. In it, each node sets a timer and transmit power level as a function of its metric. The power control is designed such that the best node is captured even if η other nodes simultaneously transmit with it. We develop several structural properties about the optimal metric-to-timer-and-power mapping, which maximizes the probability of selecting the best node. These significantly reduce the computational complexity of finding the optimal mapping and yield valuable insights about it. We show that the proposed scheme is scalable and significantly outperforms the conventional timer scheme. We investigate the effect of η and the number of receive power levels. Furthermore, we find that the practical peak power constraint has a negligible impact on the performance of the scheme. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TWC.2014.2367018 | Wireless Communications, IEEE Transactions |
Keywords | DocType | Volume |
computational complexity,data communication,power control,probability,radio networks,telecommunication power management,best node identification,best node selection probability maximization,computational complexity reduction,data transmission,metric-to-timer-and-power mapping,multinode wireless system,opportunistic selection,optimal mapping,peak power constraint,power capture,timer-based distributed node selection scheme,selection,capture,distributed schemes,medium access control protocols,timer,signal to noise ratio,measurement,system performance,wireless communication,throughput | Journal | 14 |
Issue | ISSN | Citations |
3 | 1536-1276 | 1 |
PageRank | References | Authors |
0.35 | 21 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Vikas Kumar Dewangan | 1 | 3 | 1.40 |
| Neelesh B. Mehta | 2 | 979 | 82.27 |