TY - JOUR
T1 - OARE
T2 - Overhearing-Aided Redundancy Elimination in Multirate WLANs
AU - Park, Gwangwoo
AU - Shim, Youngjun
AU - Jang, Insun
AU - Pack, Sangheon
AU - Shen, Xuemin
N1 - Funding Information:
This work was supported in part by the National Research Foundation of Korea, funded by the Korean Government under Grant NRF-2014R1A2A1A12066986; and in part by the Ministry of Science, ICT and Future Planning/Institute for Information and Communications Technology Promotion, through the ICT R&D program under Grant 2014-044-006-004 (Next Generation WLAN System with High Efficient Performance). The review of this paper was coordinated by Prof. Y. Qian.
Publisher Copyright:
© 2015 IEEE.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/5
Y1 - 2016/5
N2 - In general, an access point (AP) in wireless local area networks (WLANs) can be easily congested since all related data traffic goes through it. To satisfy the quality-of-service (QoS) requirement for its customers, a protocol-independent redundancy elimination (RE) technique can effectively mitigate the congestion at the AP by reducing redundant data traffic. In this paper, we propose an overhearing-aided RE (OARE) scheme for multirate WLANs by leveraging the broadcast nature of a wireless medium. In OARE, the AP estimates overhearing probabilities of partially sliced chunks from an incoming packet for a destination mobile terminal by considering an adaptive modulation and coding technique. Then, the original packet is encoded by means of RE to minimize its transfer time to the destination, depending on the estimated overhearing probabilities. Extensive simulation results demonstrate that OARE can reduce the packet transfer time by 7.8%-23.2%, compared with non-RE (or nonencoded) transmissions.
AB - In general, an access point (AP) in wireless local area networks (WLANs) can be easily congested since all related data traffic goes through it. To satisfy the quality-of-service (QoS) requirement for its customers, a protocol-independent redundancy elimination (RE) technique can effectively mitigate the congestion at the AP by reducing redundant data traffic. In this paper, we propose an overhearing-aided RE (OARE) scheme for multirate WLANs by leveraging the broadcast nature of a wireless medium. In OARE, the AP estimates overhearing probabilities of partially sliced chunks from an incoming packet for a destination mobile terminal by considering an adaptive modulation and coding technique. Then, the original packet is encoded by means of RE to minimize its transfer time to the destination, depending on the estimated overhearing probabilities. Extensive simulation results demonstrate that OARE can reduce the packet transfer time by 7.8%-23.2%, compared with non-RE (or nonencoded) transmissions.
KW - Broadcast
KW - multirate
KW - overhearing
KW - redundancy elimination (RE)
KW - transfer time
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U2 - 10.1109/TVT.2015.2438822
DO - 10.1109/TVT.2015.2438822
M3 - Article
AN - SCOPUS:84969940856
VL - 65
SP - 3547
EP - 3558
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
SN - 0018-9545
IS - 5
M1 - 7115174
ER -