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Medium access control (MAC) protocols coordinate channel access between wireless stations, and they significantly affect the network throughput of wireless ad hoc networks. To function normally, Multi-hop wireless networks demand an efficient and distributed medium access control (MAC) protocol. However, characteristics of Multi-hop wireless networks such as radio link vulnerability, mobility, limited...
Medium access control (MAC) protocols coordinate channel access between wireless stations, and they significantly affect the network throughput of wireless ad hoc networks. To function normally, MANETs demand an efficient and distributed MAC protocol. We first discuss the challenges that are facing MAC in MANETs. Then we proposed an effective protocol scheme for energy efficiency.
Directional antennas can be useful in significantly increasing node and network lifetime in wireless ad hoc networks. In order to utilize directional antennas, an algorithm is needed that will enable nodes to point their antennas to the right place at the right time. With omnidirectional antennas, while two nodes are communicating using a given channel, MAC protocols such as IEEE 802.11 require all...
This paper we presented the design objectives and technical challenges for effective MAC protocols in MANET. Complex environments in ad hoc networks require a joint control of physical (PHY) and medium access control (MAC) layers resources in order to optimize performance. We discuss the benefits of cross-layer frame and give a multichannel MAC approach.
Complex environments in ad hoc networks require a joint control of physical (PHY) and medium access control (MAC) layers resources in order to optimize performance. In this paper, we introduce a new approach to design protocols of MANET. The benefits of protocols which integrate the MAC protocol with higher layers are also considered.
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