Izvorni znanstveni članak
Power Saving MAC Protocols for WSNs and Optimization of S-MAC Protocol
Simarpreet Kaur
; BBSBEC, Fatehgarh Sahib, Punjab
Leena Mahajan
; IGCE, Abhipur, Punjab
Sažetak
Low power MAC protocols have received a lot of
consideration in the last few years because of their
influence on the lifetime of wireless sensor networks. Since,
sensors typically operate on batteries, replacement of
which is often difficult. A lot of work has been done to
minimize the energy expenditure and prolong the sensor
lifetime through energy efficient designs, across layers.
Meanwhile, the sensor network should be able to maintain
a certain throughput in order to fulfill the QoS
requirements of the end user, and to ensure the constancy
of the network. This paper introduces different types of
MAC protocols used for WSNs and proposes S‐MAC, a
Medium‐Access Control protocol designed for Wireless
Sensor Networks. S‐MAC uses a few innovative techniques
to reduce energy consumption and support self‐
configuration. A new protocol is suggested to improve the
energy efficiency, latency and throughput of existing MAC
protocol for WSNs. A modification of the protocol is then
proposed to eliminate the need for some nodes to stay
awake longer than the other nodes which improves the
energy efficiency, latency and throughput and hence
increases the life span of a wireless sensor network
Ključne riječi
Medium Access Control; Wireless Sensor Network; Energy Efficiency; Latency; Throughput
Hrčak ID:
71545
URI
Datum izdavanja:
15.6.2011.
Posjeta: 4.166 *