TITLE:
Multi-Constrained QoS Opportunistic Routing by Optimal Power Tuning in Low Duty-Cycle WSNs
AUTHORS:
V. P. Jayachitra, G. Geetha, Durbaka Aishwarya
KEYWORDS:
Cross-Layer, Transmission Power Control, Latency Control, Energy Efficiency, Network Throughput, Multi-Hop Wireless Networks, Mission Critical Applications
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.10,
August
12,
2016
ABSTRACT: Designing a
multi-constrained QoS (Quality of service) communication protocol for
mission-critical applications that seeks a path connecting source node and
destination node that satisfies multiple QoS constrains such as energy cost,
delay, and reliability imposes a great challenge in Wireless Sensor Networks
(WSNs). In such challenging dynamic environment, traditional routing and
layered infrastructure are inefficient and sometimes even infeasible. In recent
research works, the opportunistic routing paradigm which delays the forwarding
decision until reception of packets in forwarders by utilizing the broadcast
nature of the wireless medium has been exploited to overcome the limitations of
traditional routing. However, to guarantee the balance between the energy,
delay and reliability requires the refinement of opportunistic routing through
interaction between underlying layers known as cross-layer opportunistic
routing. Indeed, these schemes fail to achieve optimal performance and hence
require a new method to facilitate the adoption of the routing protocol to the
dynamic challenging environments. In this paper, we propose a universal
cross-layered opportunistic based communication protocol for WSNs for
guaranteeing the user set constraints on multi-constrained QoS in
low-duty-cycle WSN. Extensive simulation results show that the proposed work,
Multi-Constrained QoS Opportunistic routing by optimal Power Tuning (MOR-PT)
effectively achieves the feasible QoS trade-off constraints set by user by
jointly considering the power control and selection diversity over established
algorithms like DSF[1]andDTPC[2].