Title
Collision-Free Packet Retransmission Protocol For Wireless Csma Systems
Abstract
Recently, wireless networks using ISM band have been attracting a lot of attention. In these systems using carrier sense multiple access with collision avoidance (CSMA/CA), the packet collision and recollision between hidden nodes occur frequently and drastically decrease the network (NW) capacity. In this paper, we propose a packet retransmission protocol to avoid the packet recollision in 1 hop many-to-one network, in which all nodes send their packets to an access point (AP). In our proposed retransmission protocol, hidden nodes whose first transmitted packet is lost control their retransmission timing autonomously to avoid recollision with each other by using time lag between the finish time of their first transmitted packet and the received time of a collision inform signal, which is sent by AP to inform nodes about packet collision. The NW capacity using the proposed retransmission protocol is evaluated by computer simulation. And it is shown that the maximum network capacity of our proposed method is about 1.7 times better than that of the conventional method.
Year
Venue
Keywords
2015
2015 IEEE 81ST VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING)
Packet collision, retransmission, Hidden node problem, CSMA
Field
DocType
ISSN
Collision domain,Wireless network,Multiple Access with Collision Avoidance for Wireless,Computer science,Retransmission,Transmission delay,Network packet,Computer network,Collision,Real-time computing,Carrier sense multiple access with collision avoidance
Conference
2577-2465
Citations 
PageRank 
References 
0
0.34
5
Authors
4
Name
Order
Citations
PageRank
Kazuyuki Ozaki1195.17
Takayoshi Nakayama200.34
Yun Wen301.35
Hiroshi Fujita402.70