Ad hoc assisted handoff for real-time voice in IEEE 802.11 infrastructure WLANs

He, Mi; Wang, Xiaofan; Todd, T.D.; Zhao, Dongmei; Kezys, V.

doi:10.1504/ijwmc.2007.016725

Cited by 5 publications

(9 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Integrating the ad hoc networks with the cellular systems has been suggested in the literature [7][8][9][10][11][12][19][20][21][22]. The main goal of this integration is to increase the system's capacity and its coverage.…”

Section: Related Workmentioning

confidence: 99%

“…Opportunity Driven Multiple Access (OMDA) is another proposed method that integrates the ad hoc networking with cellular systems [11]. When there is not an overlap between neighboring WLAN's, two-hop ad hoc relaying could be used during the handoff procedure [12]. Forward and backward ad hoc relaying is used to prevent the ongoing calls from being dropped when the MS's enter such an area.…”

Section: Related Workmentioning

confidence: 99%

“…Also, it is assumed that the MS's are multi-mode. Therefore, each MS has at least two different air interfaces for working with the cellular system and the WLAN [7][8][9][10][11][12]28]. In this section, we are going to describe the proposed ad hoc relaying model and its application in dropping rate reduction.…”

Section: Dropping Reduction Through Ad Hoc Relayingmentioning

confidence: 99%

“…Therefore, this method could be employed in loosely coupled hybrid systems. A number of methods have been suggested in the literature that use the relaying to extend the coverage area or to improve the overall capacity of a cellular system [7][8][9][10][11][12]. The same kind of handset capabilities could be used in our suggested method.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dropping Rate Reduction in Hybrid WLAN/Cellular Systems by Mobile Ad Hoc Relaying

Khadivi

Samavi

Saidi

et al. 2006

Wireless Pers Commun

Self Cite

View full text Add to dashboard Cite

Future mobile handsets will often be multi-mode, containing both wireless LAN (WLAN) and cellular air interfaces. When such a device is within a WLAN it can be served by the WLAN resources. As it moves out of the WLAN coverage area, it has to be served by the cellular system. Therefore, handoffs are necessary between the WLAN and the cellular system. In loosely coupled WLAN/Cellular systems the system administrator of the WLAN is different from the cellular one. Therefore, in these situations, reducing the dropping probability based on classical methods, such as using some reserved guard channels, is difficult. In this paper, we propose to use ad hoc relaying during the vertical handoff process in a hybrid WLAN/Cellular system. The method that we propose in this paper improves the dropping probability regardless of the number of reserved channels. Therefore, this method could be employed in loosely coupled hybrid systems. Both analytical reasoning and simulation results support the effectiveness of the proposed method.

show abstract

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Dropping Reduction Through Ad Hoc Relayingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dropping Rate Reduction in Hybrid WLAN/Cellular Systems by Mobile Ad Hoc Relaying

Khadivi

Samavi

Saidi

et al. 2006

Wireless Pers Commun

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, these methods could be employed in loosely coupled hybrid systems. A number of methods have been suggested in the literature that use the relaying to extend the coverage area or to improve the overall capacity of a cellular system [11][12][13][14][15][16]. The same kind of handset capabilities could be used in our suggested method.…”

Section: Introductionmentioning

confidence: 99%