“…They highlighted the advantages and some performance issues of each routing protocol. While, in [8], the routing protocols discussed are classified into seven categories they are: Data centric routing, Hierarchical routing, Location based routing, Negotiation based routing, Multipath based routing, Quality of Service (QoS) routing and Mobility based routing, and compared them based on several parameters such as power consumption, scalability, mobility, optimal routing and data aggregation. Jain et al [9] surveyed the existing cluster-based protocols for both static and mobile WSNs, and made a comparative study among them based on several features such as basic assumptions, working environment, advantages, limitations, and working style.…”