TY - GEN
T1 - Equal Opportunity MAC Scheme for Contending Sensor Nodes in Wireless Passive Sensor Networks
AU - Seo, Heewon
AU - Ha, Jun
AU - Park, Jin Kyung
AU - Park, Hyun Chang
AU - Choi, Cheon Won
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - In a wireless passive sensor network, RF sources wirelessly supply energy to sensor nodes. Against theoretical expectations for an abundance of energy, a wireless passive sensor network suffers from a scarcity of energy in practice. By such a scarcity, a wireless passive sensor network is obliged to adopt a contending-type MAC scheme, which inevitably brings about packet collision and hence capture phenomenon. Unfortunately, the capture phenomenon places a sensor node which is far off from the sink node at a distinct disadvantage. In this paper, we propose a MAC scheme, rooted in framed and slotted ALOHA, which provides every sensor node with an equal opportunity for succeeding in packet delivery. In a case study, we prove the existence of an equal opportunity MAC scheme and construct such a MAC scheme explicitly. In addition, we develop an exact expression of the throughput attained by the proposed scheme in a closed form. Using the throughput formula, we then demonstrate that the proposed scheme is able to achieve a higher total throughput than a conventional scheme.
AB - In a wireless passive sensor network, RF sources wirelessly supply energy to sensor nodes. Against theoretical expectations for an abundance of energy, a wireless passive sensor network suffers from a scarcity of energy in practice. By such a scarcity, a wireless passive sensor network is obliged to adopt a contending-type MAC scheme, which inevitably brings about packet collision and hence capture phenomenon. Unfortunately, the capture phenomenon places a sensor node which is far off from the sink node at a distinct disadvantage. In this paper, we propose a MAC scheme, rooted in framed and slotted ALOHA, which provides every sensor node with an equal opportunity for succeeding in packet delivery. In a case study, we prove the existence of an equal opportunity MAC scheme and construct such a MAC scheme explicitly. In addition, we develop an exact expression of the throughput attained by the proposed scheme in a closed form. Using the throughput formula, we then demonstrate that the proposed scheme is able to achieve a higher total throughput than a conventional scheme.
KW - capture phenomenon
KW - equal opportunity
KW - MAC scheme
KW - total throughput
KW - wireless passive sensor network
UR - http://www.scopus.com/inward/record.url?scp=85063218105&partnerID=8YFLogxK
U2 - 10.1109/TENCON.2018.8650153
DO - 10.1109/TENCON.2018.8650153
M3 - Conference contribution
AN - SCOPUS:85063218105
T3 - IEEE Region 10 Annual International Conference, Proceedings/TENCON
SP - 1326
EP - 1331
BT - Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE Region 10 Conference, TENCON 2018
Y2 - 28 October 2018 through 31 October 2018
ER -