An Intelligent Cross-Layer QoS-Aware Protocol with Traffic-Differentiation-Based for Energy Efficient Communication in WSNs

Despite an increase in energy efficiency of WSNs research in couple of last years, still the key challenge in the design of WSNs remains to maximize the quality of service (QoS) and energy efficiency of network system. The layered strength and functionality collaboration is commonly considered as one of the most promising techniques for dealing with the given challenge to increase the duration between recharging battery and improve energy efficiency in order to prolong the sensor nodes and network lifetime. This paper presents a novel Intelligent Cross Layer QoS-aware Protocol (I-XLP) with traffic differentiation for WSNs for monitoring applications which has been done by addressing cross layered, cluster-less and application specific design. The target application is building monitoring. The novel concept behind this paper is that, by leveraging classical layered approach and blending different layer functions our proposed protocol I-XLP achieves a solution for energy efficiency and latency for the case of building monitoring applications of WSNs. This is done by combining the strong functionalities of Medium Access control (MAC), Routing and Congestion control. The proposed protocol is energy efficient and the protocol ensures lower latency for the prioritized traffic. Our proposed I-XLP is simulated by using the network simulator (ns-2). The simulation results corroborate the theoretical idea, and verify that the proposed I-XLP transmits more data with less delay and its energy consumption compared with existing protocol achieves optimum energy efficiency.