منابع مشابه
MAC-Layer Anycasting in Wireless Ad Hoc Networks
A wireless ad hoc network is formed by a group of wireless hosts, without the use of any infrastructure. To enable communication, hosts cooperate among themselves to forward packets on behalf of each other. A key challenge in ad hoc networks lies in designing efficient routing strategies. While several routing protocols have been proposed, most of them aim to select one optimal route between th...
متن کاملTopology Control in Ad Hoc Networks: a MAC Layer Solution
In ad-hoc networks the need for a distributed topology control algorithm is being widely recognized. In this paper we propose TC-ADHOC MAC, a medium access algorithm with topology control capabilities. The proposed algorithm aims at maintaining the minimum number of bidirectional neighbors of any wireless terminal very close to a certain connectivity threshold. The correctness of the algorithm ...
متن کاملEnergy-efficient MAC layer protocols in ad hoc networks
3 Scheduling-based mechanism 8 3.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 CDMA ad hoc networks . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2.1 CDMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2.2 CDMA ad hoc networks . . . . . . . . . . . . . . . . . . . . . 11 3.3 TDMA . . . . . . . . . . . . . . . . . . . . . . . . . . ...
متن کاملAlleviating MAC Layer Self-Contention in Ad-hoc Networks
The distributed coordination function (DCF) mode of IEEE 802.11 has become the defacto standard media access control mechanism for wireless ad-hoc network research. By design the IEEE 802.11 MAC protocol is unaware of the transport layer connection a packet belongs to. As a result packets belonging to the same connection contend for local spectra during transmission at neighboring nodes. This p...
متن کاملEvaluation of a BIBD Based Directional MAC Protocol for Wireless Ad Hoc Networks
The use of directional antennas in wireless ad hoc networks can significantly improve global performance due to a high spatial channel reuse. Nevertheless, its introduction poses new location dependent problems related to the MAC protocol. In this paper, the Balanced Incomplete Block Design theory has been exploited to develop a new MAC protocol for wireless ad hoc networks using directional ant...
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ژورنال
عنوان ژورنال: ACM SIGCOMM Computer Communication Review
سال: 2004
ISSN: 0146-4833
DOI: 10.1145/972374.972388