On the optimal number of hops in linear wireless ad hoc networks with hybrid ARQ

Document Type

Conference Proceeding

Publication Date

9-23-2008

Abstract

In this paper, we study the optimal design of a linear wireless multihop network that employs Hybrid Automatic Repeat reQuest (HARQ) protocols in a quasi-static fading environment. Data transmission is assumed to be delay-tolerant up to a certain predefined maximum delay (in transmission slots) that is larger or equal to the number of hops. Multihop routing is implemented through a time-division scheduling and decode-and-forward relaying. Excess time is exploited for retransmissions using either HARQ Type I or Chase Combining protocols on the hops that result in link-outage. Relying on analysis and numerical optimization, we seek answer to the following question: given the maximum allowed delay and signal-to-noise ratio, what is the optimal number of hops that maximizes the end-to-end throughput?

Identifier

51949116284 (Scopus)

ISBN

[9789639799189]

Publication Title

Proceedings of the 6th International Symposium on Modeling and Optimization in Mobile Ad Hoc and Wireless Networks Wiopt 2008

External Full Text Location

https://doi.org/10.1109/WIOPT.2008.4586094

First Page

369

Last Page

374

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