TY - GEN
T1 - Adaptive self-sustainable OFDM communications
AU - Maso, Marco
AU - Lakshminarayana, Subhash
AU - Quek, Tony Q.S.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014
Y1 - 2014
N2 - Recent advances in microwave technology and signal processing have unveiled the potential of the so-called wireless power transfer (WPT) from one device to the other. This has resulted in reducing the need of a local power source at the wireless devices. In this paper, we target a popular physical layer technology, namely the orthogonal frequency division multiplexing (OFDM) and propose a novel approach to prolong the battery life of an OFDM receiver, by exploiting the concept of WPT. We design a novel OFDM receiver architecture that does not discard the cyclic prefix (CP), but instead, exploits it to extract power from the received signal, effectively realizing a WPT between the transmitter and the receiver. The proposed technique does not require any change in the transmission protocol as compared to the legacy OFDM. We show that the amount of power carried in the CP could be made sufficient to decode the information symbols, making the transmission self-sustainable in terms of power consumption at the receiver. We analytically derive the feasibility condition for the self-sustainability of the transmission and analyze its impact on the performance of the OFDM system. Numerical findings provide encouraging results and confirm the potential of the proposed approach.
AB - Recent advances in microwave technology and signal processing have unveiled the potential of the so-called wireless power transfer (WPT) from one device to the other. This has resulted in reducing the need of a local power source at the wireless devices. In this paper, we target a popular physical layer technology, namely the orthogonal frequency division multiplexing (OFDM) and propose a novel approach to prolong the battery life of an OFDM receiver, by exploiting the concept of WPT. We design a novel OFDM receiver architecture that does not discard the cyclic prefix (CP), but instead, exploits it to extract power from the received signal, effectively realizing a WPT between the transmitter and the receiver. The proposed technique does not require any change in the transmission protocol as compared to the legacy OFDM. We show that the amount of power carried in the CP could be made sufficient to decode the information symbols, making the transmission self-sustainable in terms of power consumption at the receiver. We analytically derive the feasibility condition for the self-sustainability of the transmission and analyze its impact on the performance of the OFDM system. Numerical findings provide encouraging results and confirm the potential of the proposed approach.
UR - http://www.scopus.com/inward/record.url?scp=84906996560&partnerID=8YFLogxK
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U2 - 10.1109/ICC.2014.6884057
DO - 10.1109/ICC.2014.6884057
M3 - Conference contribution
AN - SCOPUS:84906996560
SN - 9781479920037
T3 - 2014 IEEE International Conference on Communications, ICC 2014
SP - 4662
EP - 4668
BT - 2014 IEEE International Conference on Communications, ICC 2014
PB - IEEE Computer Society
T2 - 2014 1st IEEE International Conference on Communications, ICC 2014
Y2 - 10 June 2014 through 14 June 2014
ER -