Abstract:
The handiness of low-cost modest imaging sensors fostered the emergence of Wireless
Multimedia Sensor Network (WMSN) applications i.e. traffic congestion avoidance,
video surveillance, localization, telemedicine, and industrial process control systems. The
above applications require not only guaranteed-support of QoS but also the energy
efficient multimedia processing in the WMSN, which necessitates appropriate sensor
MAC protocol. Since the need to minimize the energy consumption has driven most of
the research in sensor networks so far, mechanisms to efficiently deliver application-level
QoS, and to map these requirements to network-layer metrics such as latency and jitter,
have not been primary concerns in mainstream research on sensor networks. In this thesis
work, we propose an energy-efficient MAC protocol (QEMAC) that caters the Quality of
Services for the multimedia heterogeneous environment with fairness feature. QEMAC is
based on the latest IEEE 802.11e standard and enhances it for energy-conservation and
fairness without violating QoS constraints to the wireless multimedia sensor networks.
Simulation results reveal that QEMAC provide fairness and suffers low delay and jitter
with efficient energy consumption as compared to the other QoS-aware sensory MAC
protocols
