Ali Kalakech

Work place: Lebanese University, Lebanon

E-mail: alikalakech@hotmail.com

Website:

Research Interests: Computer systems and computational processes, Computer Architecture and Organization, Computer Networks, Analysis of Algorithms, Models of Computation

Biography

Ali Kalakech: Ali Kalakech is an associate professor at the Information Systems Department in the Lebanese University, Faculty of Economics and Business Administration. He got his Master Degree in Computer Systems from the National Institute of Applied Sciences, Toulouse, France in 2001. He received the Doctor degree from the National Polytechnic Institute, Toulouse, France in 2005. His Research interests include testing and evaluating the dependability and the performance of computer systems.

Author Articles
Modified Binary Exponential Backoff Algorithm to Minimize Mobiles Communication Time

By Ibrahim Sayed Ahmad Ali Kalakech Seifedine Kadry

DOI: https://doi.org/10.5815/ijitcs.2014.03.03, Pub. Date: 8 Feb. 2014

The field of Wireless Local Area Networks (LANs) is expanding rapidly as a result of advances in digital communications, portable computers, and semiconductor technology. The early adopters of this technology have primarily been vertical application that places a premium on the mobility offered by such systems.
Binary Exponential Backoff (BEB) refers to a collision resolution mechanism used in random access MAC protocols. This algorithm is used in Ethernet (IEEE 802.3) wired LANs. In Ethernet networks, this algorithm is commonly used to schedule retransmissions after collisions.
The paper’s goal is to minimize the time transmission cycle of the information between mobiles moving in a Wi-Fi by changing the BEB algorithm. The Protocol CSMA / CA manage access to the radio channel by performing an arbitration based on time. This causes many problems in relation to time transmission between mobiles moving in a cell 802.11. what we have done show that the protocol using CSMA / CA access time believed rapidly when the number of stations and / or the network load increases or other circumstances affects the network.

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