Performance of coopMAC Protocols over CSMA/CA 802.11 protocols
نویسنده
چکیده
Wireless communication is very fast becoming the most frequently used form of communication. Ad-Hoc networks can be easily set up anywhere without any infrastructure cost and its mobility adds to its advantage. Hence with increase in its demand the quality of the setup comes under scrutiny, hence calling for its development. This paper presents the concept of Cooperative MAC protocols. Cooperative MAC protocols are found to be more efficient over 802.11 MAC protocols and improve the network performance substantially. Comparison of 802.11 MAC protocols and CoopMAC protocols on NS2 platform is carried out and successfully proved that cooperative MAC protocols offer much higher throughput.
منابع مشابه
Design, Implementation, and Evaluation of new MAC Protocols for Long Distance 802.11 Networks
802.11 MAC is based on Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) and was designed to be used in an indoor environment where a small number of wireless nodes share a common channel. It has been shown in Digital Gangetic Plains project that 802.11 hardware can be used beyond its intended use of WLANs by connecting long distance wireless links spread over tens of kilometers....
متن کاملPerformance Analysis of CSMA/CA(Carrier Sense Multiple Access with Collision Avoidance) Protocols for Wireless Local Area Networks in Multipath and Shadowing Environments
The channel throughput and packet delay of wireless media access control (MAC) protocols with Rayleigh fading, shadowing and capture effect are analyzed. We consider CSMA/CA protocols as the wireless MAC protocols, since CSMA/CA protocols are based on the standard for wireless Local Area Networks (LANs) IEEE 802.11. We analyze the channel throughput and packet delay for three types of CSMA/CA p...
متن کاملThroughput and Packet Delay Analysis of CSMA/CA Protocols for Wireless LANs in Multipath Fading, Shadowing and Near-far Effects
The channel throughput and packet delay of wireless media access control (MAC) protocols with Rayleigh fading, shadowing and capture effect are analyzed. We consider CSMA/CA protocols as the wireless MAC protocols, since CSMA/CA protocols are based on the standard for wireless Local Area Networks (LANs) IEEE 802.11. We analyze the channel throughput and packet delay for three types of CSMA/CA p...
متن کاملPerformance of Carrier Sense Multiple Access with Collision Avoidance Protocols in Wireless LANs
The performance of Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) protocols, which is adopted as a draft standard in IEEE 802.11, is analyzed in the view of throughput and packet delay. We consider three kinds of CSMA/CA protocols, which include Basic, Stop-and-Wait and 4-Way Handshake CSMA/CA, and introduce a theoretical analysis for them. First, we consider that a network consist...
متن کاملPerformance Analysis of the IEEE 802.11 MAC Protocols over a WLAN with Capture Effect
In this paper, we use a discrete Markov chain model to analyze the throughput of CSMA/CA protocols in a wireless local area network (WLAN) considering the capture phenomenon, which means the packet with the strongest power may capture the receiver even in the presence of other overlapping packets. The model of capture effect over the theoretical throughput of CSMA/CA protocols in the presence o...
متن کامل