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Pingakshya Goswami

Bio: Pingakshya Goswami is an academic researcher. The author has contributed to research in topics: Wireless network & Handover. The author has an hindex of 1, co-authored 1 publications receiving 2 citations.

Papers
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Journal ArticleDOI
TL;DR: This paper proposes a better scanning mechanism to reduce handoff latency and uses GPS to determine the direction of velocity of the MN as well as position and reduces the time to find the closest and best AP among all neighbor APs.
Abstract: Presently IEEE 802.11b based wireless networks are being widely used in various fields like personal as well as business applications. Handoff is a critical issue in IEEE 802.11b based wireless networks. When a mobile node (MN) moves away from the range of its current access point (AP) it needs to perform a link layer handoff. This causes data loss and interruption in communication. According to IEEE 802.11b link layer2 (L2) handoff consists of three phases - scanning, authentication and re,association. Scanning process delay is 90% of the total handoff delay. So in this paper we propose a better scanning mechanism to reduce handoff latency. Using GPS we determine the direction of velocity of the MN as well as position. It reduces the time to find the closest and best AP among all neighbor APs. This process effectively reduces the handoff latency.

2 citations


Cited by
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Proceedings ArticleDOI
31 Dec 2012
TL;DR: This paper implements a new handoff scheme which is applicable for both regular and irregular motion of MS, and simulation results show the effectiveness of the proposed scheme in practical field.
Abstract: In wireless communication, handoff has become an important topic of research. A mobile station (MS) requires handoff when it travels out of the coverage area of its current access point (AP) and tries to associate with another AP. But handoff failure probability provides a serious barrier for such services to be made available to mobile platforms. Throughout the last few years plenty of research had been done to reduce handoff failure probability, whereas very few of them can be applied for an irregular (haphazard) motion of MS. In this paper, we are going to implement a new handoff scheme which is applicable for both regular and irregular motion of MS. We will find the minimum time interval (T) that the MS should stay within the handoff region (the particular area within a cell where the handoff is initiated and performed). We will repeat the scanning process number of times at different points of MS trajectory within the handoff region until the total scanning time exceeds the fixed time interval (T) and by doing so we can find out the most significant AP. Our simulation results show the effectiveness of our proposed scheme in practical field.

2 citations

Proceedings ArticleDOI
31 Dec 2012
TL;DR: A new scanning technique where the hexagonal cell is divided in three angular segments and for each segment two neighbour BSs are reserved for handover, which shows the effectiveness of the proposed scheme in practical field.
Abstract: In wireless & mobile communication the mobility management technique is an important issue of research. To fulfill the criteria of the all time connectivity, the mobile station (MS) should be connected with a base station (BS) during its operating mode, irrespective of its mobility. When a MS travels within the cell, no special technique is required to maintain its connectivity. But when a MS travels out of the coverage area of its current BS and tries to associate with another BS, a delay occurs during the handover of connection which leads to a failure of connection. Throughout the last few years plenty of researches had been done to reduce this handover delay by reducing the scanning delay as the scanning process causes ninety percent of the total handover delay. In this paper, we propose a new scanning technique where the hexagonal cell is divided in three angular segments and for each segment two neighbour BSs are reserved for handover. MS will measure its distance from the reserved BSs at fixed time intervals and the handover of connection will be performed to the nearest BS when the handover will be required. Our simulation results show the effectiveness of our proposed scheme in practical field.

1 citations