IEEE 802.11 Handovers Assisted by GPS Information

Montavont, Julien; Noël, Thomas

doi:10.1109/wimob.2006.1696358

Cited by 47 publications

(26 citation statements)

References 9 publications

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“…발히 진행되었다 [3][4][5][6][7][8][9][10] . RSSI(Received Signal Strength Indication) [3,4,7] , 다중인터페이스 [5,6] , 이동패턴 [8] , GPS 서버 [9,10] 등을 이용하여 핸드오프의 채널검색 단계에 서 소요되는 시간을 줄이는 연구가 수행되었다.…”

Section: 기존 연구에서 이동단말이 현재 접속된 Ap와 연결 이 끊어지기 전 핸드오프 수행을 예측하는 연구가 활unclassified

“…RSSI(Received Signal Strength Indication) [3,4,7] , 다중인터페이스 [5,6] , 이동패턴 [8] , GPS 서버 [9,10] 등을 이용하여 핸드오프의 채널검색 단계에 서 소요되는 시간을 줄이는 연구가 수행되었다. 링크품 질을 기반으로 한 핸드오프 [3,4,7] 는 지하지 못하는 단점이 존재한다 [9,10] . Hata 경로손실 모델을 적용하였다 [12] .…”

Section: 기존 연구에서 이동단말이 현재 접속된 Ap와 연결 이 끊어지기 전 핸드오프 수행을 예측하는 연구가 활unclassified

“…제안하는 사전 AP 정보를 이용한 핸드오프 기법의 성능 평가를 위해 기존 IEEE 802.11 핸드오프 방식 [1] 및 GPS 서버 기반 [10] 과 비교 분석하였다. 성능 분석을 위한 척도는 다음과 같다.…”

Section: 기존 연구에서 이동단말이 현재 접속된 Ap와 연결 이 끊어지기 전 핸드오프 수행을 예측하는 연구가 활unclassified

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Improvement of Handoff Performance Using Prefetched AP Information in IEEE 802.11

Lee

Kim

2015

The Journal of Korean Institute of Communications and Informati

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Key Words : handoff, handover, IEEE 802.11, access point, handoff latency ABSTRACT This paper proposes the improved handoff mechanism for IEEE 802.11 wireless LANs. When a wireless mobile node moves out of the coverage of its currently associated AP(Access Point) and needs to be re-associated with a new AP, a handoff procedure is initiated. Channel scanning process during a handoff procedure occupies over 90% of total handoff latency. Long latency leads to many packet losses and service discontinuity, which degrades wireless network performance. This paper describes about the new mechanism to improve handoff performance by skipping channel scanning during a handoff procedure. In oerder for that, acquires neighboring AP information such as its address, location, channel number in use, the number of associated nodes before handoff, and delivers the information to its associated mobile nodes. The mobile nodes can reduce handoff latency and perform more exact handoff using the delivered AP information. We have conducted simulations to analyze our proposal's performance and confirmed that handoff latency and the number of handoff occurrences are decreased.

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Section: 기존 연구에서 이동단말이 현재 접속된 Ap와 연결 이 끊어지기 전 핸드오프 수행을 예측하는 연구가 활unclassified

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Improvement of Handoff Performance Using Prefetched AP Information in IEEE 802.11

Lee

Kim

2015

The Journal of Korean Institute of Communications and Informati

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“…On the other hand, the constellation of this scheme are closely packed together, thus, more susceptible to noise and distortion, leading to higher bit error rate in higher modulation scheme [35,36] 176 Figure 2. Performance enhancement in 802.11ac over 802.11n [37] …”

Section: Higher Order Modulation Schemementioning

confidence: 99%

Empirical Performance Evaluation of Enhanced Throughput Schemes of IEEE802.11 Technology in Wireless Area Networks

Femi-Jemilohun¹,

Walker²

2013

IJWMN

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“…• The average time delay for a packet to be sent between MN and the MAG is t mm • The average time delay for a packet to be sent between two MAGs is t am • The average time delay for a packet to be sent between the MAG and the AAA is t a For basic handover in PMIPv6, the average handover delay is given by (Montavont and Noel, 2006 …”

Section: Performance Analysismentioning

confidence: 99%

MULTICAST-SUPPORTED FAST HANDOVER FOR Proxy Mobile IPv6

Hency¹

2013

Journal of Computer Science

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Proxy Mobile IPv6 is a network-based mobility management protocol which is attractive as it does not require the participation of mobile nodes in mobility-related signaling. Unlike the host based approaches like Mobile IPv6, in PMIPv6 the Mobility Access Gateway (MAG) is responsible for tracking the movements of Mobile Node (MN) and to initiate the handover process. In this study, a novel method of multicasting the data packets to both the previous and the new MAGs by Local Mobility Anchor (LMA) during the handover process is proposed. The experimental results show that the handover delay is greatly reduced when compared to the existing approaches and the packet loss during the handover process is reduced.

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IEEE 802.11 Handovers Assisted by GPS Information

Cited by 47 publications

References 9 publications

Improvement of Handoff Performance Using Prefetched AP Information in IEEE 802.11

Improvement of Handoff Performance Using Prefetched AP Information in IEEE 802.11

Empirical Performance Evaluation of Enhanced Throughput Schemes of IEEE802.11 Technology in Wireless Area Networks

MULTICAST-SUPPORTED FAST HANDOVER FOR Proxy Mobile IPv6

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