TY - GEN
T1 - Performance tradeoff in two-zone based wireless powered communication networks
AU - Kim, Sung Hoon
AU - Kim, Dong In
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/4/15
Y1 - 2015/4/15
N2 - In this paper we study two-zone based wireless powered communication networks (WPCNs) to overcome doubly near-far problem which causes a severe range discrimination. In the two-zone based WPCNs, near users in the inner region (Region 1) from the hybrid access point (H-AP) help far users in the outer region (Region 2) to relay their information to the H-AP in the uplink. We define the minimum energy harvested in the downlink for information transmission of near users in Region 1, and then propose an algorithm to determine a proper boundary for the greedy algorithm being used for relay pairing. The convex optimization technique is used to maximize the throughput of twozone based WPCNs, whose performance, in terms of throughput and fairness, is compared with those with sum-throughput and common-throughput maximization techniques operated by the harvest-then-transmit protocol.
AB - In this paper we study two-zone based wireless powered communication networks (WPCNs) to overcome doubly near-far problem which causes a severe range discrimination. In the two-zone based WPCNs, near users in the inner region (Region 1) from the hybrid access point (H-AP) help far users in the outer region (Region 2) to relay their information to the H-AP in the uplink. We define the minimum energy harvested in the downlink for information transmission of near users in Region 1, and then propose an algorithm to determine a proper boundary for the greedy algorithm being used for relay pairing. The convex optimization technique is used to maximize the throughput of twozone based WPCNs, whose performance, in terms of throughput and fairness, is compared with those with sum-throughput and common-throughput maximization techniques operated by the harvest-then-transmit protocol.
KW - Convex optimization
KW - Doubly near-far problem
KW - Energy harvesting
KW - Harvestthen- Transmit protocol
KW - Wireless powered communication networks
UR - https://www.scopus.com/pages/publications/84984998220
U2 - 10.1109/ISWCS.2015.7454347
DO - 10.1109/ISWCS.2015.7454347
M3 - Conference contribution
AN - SCOPUS:84984998220
T3 - Proceedings of the International Symposium on Wireless Communication Systems
SP - 286
EP - 290
BT - 2015 12th International Symposium on Wireless Communication Systems, ISWCS 2015 - Proceedings
PB - VDE Verlag GmbH
T2 - 12th International Symposium on Wireless Communication Systems, ISWCS 2015
Y2 - 25 August 2015 through 28 August 2015
ER -