Imperial College London
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ProfessorDenizGunduz

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor in Information Processing
 
 
 
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Contact

 

+44 (0)20 7594 6218d.gunduz Website

 
 
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Assistant

 

Ms Joan O'Brien +44 (0)20 7594 6316

 
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Location

 

1016Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Abad:2017:10.1109/ISWCS.2017.8108135,
author = {Abad, MSH and Gunduz, D and Ercetin, O},
doi = {10.1109/ISWCS.2017.8108135},
pages = {331--336},
publisher = {IEEE},
title = {Communication over a time correlated channel with an energy harvesting transmitter},
url = {http://dx.doi.org/10.1109/ISWCS.2017.8108135},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - In this work, communication over a time-correlated point-to-point wireless channel is studied for an energy harvesting (EH) transmitter. In this model, we take into account the time and energy cost of acquiring channel state information. At the beginning of the time slot, the EH transmitter, has to choose among three possible actions: i) deferring the transmission to save its energy for future use, ii) transmitting without sensing, and iii) sensing the channel before transmission. At each time slot, the transmitter chooses one of the three possible actions to maximize the total expected discounted number of bits transmitted over an infinite time horizon. This problem can be formulated as a partially observable Markov decision process (POMDP) which is then converted to an ordinary MDP by introducing a belief on the channel state, and the optimal policy is shown to exhibit a threshold behavior on the belief state, with battery-dependent threshold values. Optimal threshold values and corresponding optimal performance are characterized through numerical simulations, and it is shown that having the sensing action and intelligently using it to track the channel state improves the achievable long-term throughput significantly.
AU  - Abad,MSH
AU  - Gunduz,D
AU  - Ercetin,O
DO  - 10.1109/ISWCS.2017.8108135
EP  - 336
PB  - IEEE
PY  - 2017///
SN  - 2154-0225
SP  - 331
TI  - Communication over a time correlated channel with an energy harvesting transmitter
UR  - http://dx.doi.org/10.1109/ISWCS.2017.8108135
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000418336500058&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/55810
ER  -
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