From Experience with Indoor Wireless Networks: A Link Quality Metric that Captures Channel Memory
| Autor: | Dhananjay Lal, Krishna Chintalapudi, Elif Uysal-Biyikoglu, Abtin Keshavarzian |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Link state packet
business.industry Stochastic process Computer science Wireless network Network packet Automatic repeat request ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Energy consumption Computer Science Applications Computer Science::Performance Modeling and Simulation Computer Science::Networking and Internet Architecture Wireless Electrical and Electronic Engineering business Inefficiency Computer network Communication channel |
| Zdroj: | IEEE Communications Letters. 11:729-731 |
| ISSN: | 1089-7798 |
| DOI: | 10.1109/lcomm.2007.070683 |
| Popis: | With ARQ based link-layer schemes, energy consumption on a link increases with packet retransmissions. We define the inefficiency of a link as the expected number of transmissions before a packet is successfully received on that link. Memory in the packet success process, caused by long indoor coherence times, strongly influences inefficiency. Based on measurements, we build a simple model for the packet success process that incorporates memory and predicts our metric practically and accurately. In particular, inefficiency is asymptotically linear in the memory duration when there is a nonzero probability of a deep fade, and approximately logarithmic otherwise. |
| Databáze: | OpenAIRE |
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