A slotted mac protocol for efficient bandwidth utilization in wdm metropolitan access ring networks

2003 ◽  
Vol 21 (8) ◽  
pp. 1295-1305 ◽  
Author(s):  
C.S. Jelger ◽  
J.M.H. Elmirghani
Keyword(s):  
Mac Protocol ◽  
Ring Networks ◽  
Bandwidth Utilization

Design and performance of a new node architecture and MAC protocol for WDM metro ring networks

2004 ◽  
Author(s):  
Zhizhong Zhang ◽  
Fang Cheng ◽  
Qijian Mao ◽  
Shaofeng Qiu ◽  
Yunlin Zhang ◽  
...  
Keyword(s):  
Mac Protocol ◽  
Ring Networks ◽  
Node Architecture ◽  
And Performance

scholarly journals Adaptive Beaconing in Mobility Aware Clustering Based MAC Protocol for Safety Message Dissemination in VANET

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Nishu Gupta ◽  
Arun Prakash ◽  
Rajeev Tripathi
Keyword(s):  
Ad Hoc ◽  
Mac Protocol ◽  
Ieee 802.11P ◽  
Bandwidth Utilization ◽  
Transmission Frequency ◽  
Vehicle Communication ◽  
Safety Message ◽  
Vehicle To Vehicle ◽  
Wide Range

Majority of research contributions in wireless access in vehicular environment (WAVE)/IEEE 802.11p standard focus on life critical safety-related applications. These applications require regular status update of vehicle’s position referred to as beaconing. Periodic beaconing in vehicle to vehicle communication leads to severe network congestion in the communication channel. The condition worsens under high vehicular density where it impacts reliability and upper bound latency of safety messages. In this paper, WAVE compliant enhancement to the existing IEEE 802.11p protocol is presented which targets prioritized delivery of safety messages while simultaneously provisioning the dissemination of nonsafety messages. Proposed scheme relies on dynamic generation of beacons to mitigate channel congestion and inefficient bandwidth utilization by reducing transmission frequency of beacons. Through the use of clustering mechanism, different beaconing frequencies and different data transmission rates are assigned to prioritize vehicular mobility. Through extensive simulation results, the performance of the proposed approach is evaluated in terms of a wide range of quality of service (QoS) parameters for two different transmission ranges. Results show that the proposed protocol provides significant enhancement and stability of the clustered topology in vehicular ad hoc network over existing standard and other protocols with similar applications.

Research on Sensor Medium Access Control Protocol for Wireless Sensor Networks

2014 ◽  
Vol 539 ◽  
pp. 276-279
Author(s):  
Li Na Yuan ◽  
Hua Jun Chen
Keyword(s):  
Mac Protocol ◽  
Medium Access Control Protocol ◽  
Structure Change ◽  
Utilization Efficiency ◽  
Wireless Sensor ◽  
Bandwidth Utilization ◽  
Medium Access ◽  
Node Density ◽  
Key Technology ◽  
Save Energy

The design of S-MAC protocol focuses on how to save energy effectively , how to adapt to the requirements of network scale, node density and topological structure change , and equality, throughput, and bandwidth utilization efficiency are placed on the secondary position This paper points out the classification, basic principal, main mechanisms and key technology of a wireless sensor network MAC protocol.

A novel and simple beforehand bandwidth reservation (BBR) MAC protocol for OBS metro ring networks

2008 ◽  
Vol 17 (1) ◽  
pp. 59-72 ◽  
Author(s):  
Wen-Ping Chen ◽  
Wen-Fong Wang ◽  
Wen-Shyang Hwang
Keyword(s):  
Mac Protocol ◽  
Ring Networks ◽  
Bandwidth Reservation
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