Multimedia sensor networks: Recent trends, research challenges and future directions

With the emergence of low-cost hardware is enabling the development of wireless multimedia sensor network. Challenges in WMSN are resource constraint, Application specific QoS requirements and High bandwidth demand. In this paper we have explored the multichannel communication architectures of WMSN to achieve high data rate requirements, to cater interferences, jamming and congestion avoidance for reliable communication, we have listed challenging issues pertaining to multichannel communication. Picture of these MCC protocols is also presented in this paper. Classification of multichannel assignment protocols has been proposed, Identified different channel selection policies, types of channel assignment and methods of channel assignment. We conclude by a table presenting many examples of existing multichannel protocols designed for WMSNs and highlighted promising research directions.