Paper Info
Title
Collision Recovery for OFDM System over Wireless Channel
Abstract
We present an effective method of collision recovery for orthogonal frequency division multiplexing (OFDM)-based communications. For the OFDM system, the modulated message data can be demodulated using the partial time-domain OFDM signal. Therefore, the partial time-domain signal can be adopted to reconstruct the whole OFDM time-domain signal with estimated channel information. This property can be utilized to recover packets from the collisions. Since most collisions are cases in which a long packet collides with a short packet, the collided part is assumed to be short. The simulated results show that the method can recover the two collided packets with a certain probability and can be developed to solve the problem of hidden terminals. This method will dramatically benefit the protocol design of wireless networks, including ad hoc and sensor networks.
Year
DOI
Venue
2007
10.1093/ietfec/e90-a.7.1312
IEICE Transactions
Keywords
Field
DocType
ofdm system,wireless channel,certain probability,partial time-domain ofdm signal,effective method,whole ofdm time-domain signal,collision recovery,short packet,long packet collides,collided part,partial time-domain signal,collided packet
Wireless network,Wireless,Capture effect,Network packet,Communication channel,Real-time computing,Wireless ad hoc network,Wireless sensor network,Mathematics,Orthogonal frequency-division multiplexing
Journal
Volume
Issue
ISSN
E90-A
7
0916-8508
Citations 
PageRank 
References 
1
0.37
16
Authors
2
Name
Order
Citations
PageRank
Yafei Hou1194.47
Masanori Hamamura28613.37