Extend The Performance Of MANET Through DEL-CMAC Protocol
Cooperative communication, which utilizes nearby terminals to relay the overhearing information to achieve the
diversity gains, has a great potential to improve the transmitting efficiency in wireless networks. To deal with the
complicated medium access interactions induced by relaying and leverage the benefits of such cooperation, an efficient
Cooperative Medium Access Control(CMAC) protocol is needed. In this paper, proposes a novel cross-layer distributed
energy-adaptive location-based CMAC protocol, namely DEL-CMAC, for Mobile Ad-hoc NETworks (MANETs). The
design objective of DEL-CMAC is to improve the performance of the MANETs in terms of network lifetime and energy
efficiency. A practical energy consumption model is utilized in this paper, which takes the energy consumption on both
transceiver circuitry and transmit amplifier into account. A distributed utility-based best relay selection strategy is
incorporated, which selects the best relay based on location information and residual energy. Furthermore, with the purpose
of enhancing the spatial reuse, an innovative network allocation vector setting is provided to deal with the varying
transmitting power of the source and relay terminals.
Keywords— Network lifetime, medium access control protocol, relay selection, optimal power allocation.