[PDF] Top 20 An Improved Analysis of MAC IEEE 802 16 in Wireless Ad hoc Networks

... In Wireless Ad Hoc Networks, the delay performance in data transmission reduces the rate of transmission in Mac layer, which affects the throughput in ...proposed Mac protocol ... See full document

... underlying MAC protocol, nor do the results show that their relative performance remains approximately ...different MAC protocols, though more study of further table-driven protocols is required to validate ... See full document

... • DSRC: In 1999, Federal Communications Commission (FCC) allocated 75 MHz (from 5.850 GHz to 5.925 GHz) bandwidth for Dedicated Short Range Communication (DSRC) in vehicular environments [3]. DSRC is also called as ... See full document

... In the IEEE 802.15.4 specification, the replayed message is prevented by the replay protection mechanism, that is, sequential freshness. This is achieved by which a receiver checks the recent counter and rejects ... See full document

... “Channel MAC” performing a fully distributed medium access control based on opportunistic communication ...Channel MAC in a shared multiple access ...Channel MAC—throughput, fairness, and delay—are ... See full document

... SS). IEEE 802.16 MAC defines QoS signaling mechan- isms and functions that control BS and SS data transmis- ...the wireless medium is possible: Point-to-Multipoint (PMP) and ...in ad ... See full document

... In the case of success, the time elapsed between the BTs and the next CB is devoted to the exchange of data and control packets. It is worth mentioning that in the case that all the stations of the network are in the ... See full document

... through wireless media is in very much demand because of high mobility of the users and establishing ad hoc network in emergency situations, which requires the designing of an efficient and priority ... See full document

... in IEEE 802.16 networks such that the throughput requirement is satis- fied while achieving a good compromise between re- source utilization and delivery ...of IEEE 802.16 networks with rtPS ... See full document

... In wireless ad hoc networks, nodes cooperatively form a network without any infrastructure such as a BS/AP (base sta- tion or access ...contention-based MAC protocol, IEEE ... See full document

... cooperative MAC protocols follow the IEEE ...only IEEE 802.11-based cooperative MAC protocols with link adaptation [12] are surveyed in this ... See full document

... This paper focuses on evaluating certain important metrics on the performance wireless ad hoc networks using AODV [2] and AOMDV [3]. Even though both these protocols have the common ... See full document

... existing MAC protocols for wireless ad-hoc networks with beam forming antennas differs in terms of the supported communication range for a specific transmission ...directional ... See full document

... contention-based MAC protocols in fixed networks has been the subject of previ- ous research, for example, [2, 9], where contention can be avoided if competition to gain access to the medium is re- moved by ... See full document

... Abstract— IEEE 802.11 MAC standard allocates single channel, single interface to each node in the case of wireless ad-hoc networks, as a default behavior of this ... See full document

... The broadcast nature of the radio channel, such as transmissions prepared by a device is established by all devices that are in its straight transmission covering area. When a device receives data, no other device in its ... See full document

... This approach’s applicability is limited, as devices in many typical mobile computing scenarios use omni- directional antennas. A Similar approach that uses ultrasound technique has been proposed in [15]. The protocol ... See full document

... an ad hoc network is that the network topology is never static; node mobility is very high; and resources ( ...in ad hoc networks. As the wireless medium is inherently broadcast, ... See full document

... In network, a packet collision occurs when two or more nodes attempt to transmit packets into the medium over the network at the same time. Packet collisions can be the cause of wasting energy and decreasing performance ... See full document

... new MAC directional protocol which efficiently addresses the deafness problem and provides high spatial reuse, great fairness and significant energy saving compared to the classical directional ... See full document