TY - GEN
T1 - Energy harvesting for self-sustainable OFDMA communications
AU - Maso, Marco
AU - Lakshminarayana, Subhash
AU - Quek, Tony Q.S.
AU - Poor, H. Vincent
PY - 2014/2/9
Y1 - 2014/2/9
N2 - In this work a wireless power transfer (WPT) scheme for orthogonal frequency division multiple access (OFDMA) systems is proposed, with the objective of prolonging the battery life of the receiver. A novel receiver that capitalizes on the presence of a redundant portion of the OFDMA signal, i.e, the cyclic prefix (CP), to harvest energy that can be used to reduce the power consumption of the OFDMA digital signal processing at the receiver, is described. The concept of self-sustainability, a condition achieved when the amount of harvested energy from the received signal is sufficient to perform the digital signal processing at the receiver, is introduced. A parametric model to study the feasibility of several levels of self-sustainability, is provided and an analytical condition to ensure their achievability is derived. Numerical findings show that, under certain reasonable conditions, the full self-sustainability can be achieved for CP sizes compliant with the existing telecommunication standards.
AB - In this work a wireless power transfer (WPT) scheme for orthogonal frequency division multiple access (OFDMA) systems is proposed, with the objective of prolonging the battery life of the receiver. A novel receiver that capitalizes on the presence of a redundant portion of the OFDMA signal, i.e, the cyclic prefix (CP), to harvest energy that can be used to reduce the power consumption of the OFDMA digital signal processing at the receiver, is described. The concept of self-sustainability, a condition achieved when the amount of harvested energy from the received signal is sufficient to perform the digital signal processing at the receiver, is introduced. A parametric model to study the feasibility of several levels of self-sustainability, is provided and an analytical condition to ensure their achievability is derived. Numerical findings show that, under certain reasonable conditions, the full self-sustainability can be achieved for CP sizes compliant with the existing telecommunication standards.
KW - Energy harvesting
KW - OFDMA
KW - self-sustainability
KW - wireless power transfer
UR - http://www.scopus.com/inward/record.url?scp=84949922179&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84949922179&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2014.7037293
DO - 10.1109/GLOCOM.2014.7037293
M3 - Conference contribution
AN - SCOPUS:84949922179
T3 - 2014 IEEE Global Communications Conference, GLOBECOM 2014
SP - 3168
EP - 3173
BT - 2014 IEEE Global Communications Conference, GLOBECOM 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE Global Communications Conference, GLOBECOM 2014
Y2 - 8 December 2014 through 12 December 2014
ER -