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A multichannel relay MAC protocol for IEEE 802.11 wireless LANs
Author(s) -
Kim DongWook,
Lim WanSeon,
Suh YoungJoo
Publication year - 2014
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.2526
Subject(s) - computer science , computer network , relay , throughput , frame (networking) , network allocation vector , transmission (telecommunications) , protocol (science) , ieee 802.11 , wireless , inter access point protocol , interference (communication) , multiple access with collision avoidance for wireless , access control , wireless network , media access control , wi fi , channel (broadcasting) , telecommunications , wi fi array , medicine , power (physics) , physics , alternative medicine , pathology , quantum mechanics
SUMMARY One of the challenging issues in wireless LANs (WLANs) is improving the network throughput. One of the possible solutions for the issue is maximizing the number of concurrent transmissions. Although some protocols have been proposed to exploit transmission concurrency in WLANs, their performance depends on the degree of the interference among links. Also, it is hard to obtain interference information because of their dynamics. In this paper, we propose an enhanced medium access control (MAC) protocol for WLANs, named multichannel relay MAC (MRMAC), which is able to transmit multiple frames simultaneously without considering interference. To enable concurrent transmissions, MRMAC adopts the concept of frame relaying. Furthermore, MRMAC utilizes several nonoverlapping channels to eliminate interferences. Through extensive simulations, we found that MRMAC shows better performance than existing well‐known MAC protocols. Copyright © 2013 John Wiley & Sons, Ltd.