Description
The evolution of Wireless Sensor Network (WSN) has experienced rapid growth in communication technology. Multimedia is needed in many applications of WSN. The existing WSN which runs on IEEE 802.15.4 standard mainly deals with low scalar traffic applications such as monitoring of temperature, humidity and pressure. Thus, high traffic application especially video transmission over WSN introduces huge challenges such as dynamic channel conditions, limited resources and delay constraint. This book focus on the development of a reliable Medium Access Control (MAC) protocol that can maintain good quality of service (QoS) with low power consumption for high traffic application. The MAC layer design with token approach protocol namely MAC-TA protocol is proposed for single hop network. The
Hybrid MAC namely HMAC-TA which is a combination of Carrier Sense Multiple Access (CSMA) and token approach protocol is proposed for multi-hop network. Both protocols are designed for high traffic scalar data. The HMAC-TA protocol is enhanced to support MPEG- 4 video transmission in WSN and the improved protocol is called eHMAC-TA. The improved MAC protocols ensure low energy consumption by providing a reliable link for data transmission and minimizing the retransmission of packet loss.
