Contents 1. Introduction
With the development of high performance portable computers. there are more and more mobile users and wireless data communications. So WLAN is widely deployed in many situations. such as offices. waiting room. meeting room, etc.
Abstract:
The performance of handoff initiation algorithm is one of the key issues for providing roaming capability in wireless LAN (WLAN). In this paper, we propose a new handoff ...Show MoreMetadata
Abstract:
The performance of handoff initiation algorithm is one of the key issues for providing roaming capability in wireless LAN (WLAN). In this paper, we propose a new handoff initiation algorithm for data transmitting in WLAN. Our proposal combines association time, system load and signal/noise ratio (SNR) together to decide whether mobile node should handoff or not. The goal is to reduce the number of unnecessary handoff, decrease packet loss and balance the system load. In this way, we can provide quality of service (QoS) guarantee. Simulation results show that the proposed handoff initiation algorithm is efficient in WLAN.
Published in: 14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003.
Date of Conference: 07-10 September 2003
Date Added to IEEE Xplore: 14 January 2004
Print ISBN:0-7803-7822-9
Citations are not available for this document.
Cites in Patents (10)Patent Links Provided by 1790 Analytics
1.
Nandagopal, Thyaga; Sathyanath, Ajay, "System and method for providing communication services"
Inventors:
Nandagopal, Thyaga; Sathyanath, Ajay
Abstract:
A method for determining a load measure associated with a wireless communications node, such as a Wi-Fi access point or cellular base station, is described. A time interval measure representing a time interval between frames transmitted by a node is determined, and a number of user devices associated with the node is determined based on information in the frames transmitted by the node. A load measure associated with the node is determined, based at least on the number of user devices associated with the node and the time interval measure. Systems and apparatus are also described.
Assignee:
ALCATEL LUCENT
Filing Date:
25 May 2011
Grant Date:
01 September 2015
Patent Classes:
Current International Class:
H04W0482000000, H04L0122600000, H04W0240200000
2.
Jeyaseelan, Jaya L.; Gupta, Nitin, "Mobile station with roaming timer"
Inventors:
Jeyaseelan, Jaya L.; Gupta, Nitin
Abstract:
A mobile station in a wireless network includes a roaming timer. The roaming timer is set based on various criteria, and when the roaming timer expires, an attempt to roam is performed.
Assignee:
INTEL CORP
Filing Date:
05 March 2013
Grant Date:
28 July 2015
Patent Classes:
Current International Class:
H04W0040000000, H04W0080200000, H04W0363000000
3.
NANDAGOPAL, Thyaga; AJAY, Sathyanath, "SYSTEM AND METHOD FOR PROVIDING COMMUNICATION SERVICES"
Inventors:
NANDAGOPAL, Thyaga; AJAY, Sathyanath
Abstract:
A method for determining a load measure associated with a wireless communications node, such as a Wi-Fi access point or cellular base station, is described. A time interval measure representing a time interval between frames transmitted by a node is determined, and a number of user devices associated with the node is determined based on information in the frames transmitted by the node. A load measure associated with the node is determined, based at least on the number of user devices associated with the node and the time interval measure. Systems and apparatus are also described.
Assignee:
ALCATEL LUCENT
Filing Date:
22 May 2012
Grant Date:
09 April 2014
Patent Classes:
Current International Class:
H04L0122600000, H04W0482000000, H04W0841200000
4.
NANDAGOPAL, Thyaga; AJAY, Sathyanath, "SYSTEM AND METHOD FOR PROVIDING COMMUNICATION SERVICES"
Inventors:
NANDAGOPAL, Thyaga; AJAY, Sathyanath
Abstract:
A method for determining a load measure associated with a wireless communications node, such as a Wi-Fi access point or cellular base station, is described. A time interval measure representing a time interval between frames transmitted by a node is determined, and a number of user devices associated with the node is determined based on information in the frames transmitted by the node. A load measure associated with the node is determined, based at least on the number of user devices associated with the node and the time interval measure. Systems and apparatus are also described.
Assignee:
ALCATEL LUCENT
Filing Date:
22 May 2012
Grant Date:
29 November 2012
Patent Classes:
Current International Class:
H04L0122600000, H04W0482000000, H04W0841200000
5.
Jeyaseelan, Jaya L; Gupta, Nitin, "WIRELESS NETWORK ROAMING TIMER METHOD AND APPARATUS"
Inventors:
Jeyaseelan, Jaya L; Gupta, Nitin
Abstract:
A mobile station in a wireless network includes a roaming timer. The roaming timer is set based on various criteria, and when the roaming timer expires, an attempt to roam is performed.
Assignee:
INTEL CORP
Filing Date:
14 June 2011
Grant Date:
29 May 2012
Patent Classes:
Current U.S. Class:
455432100, 370338000, 455041200, 455067110, 455434000, 455435200
Current International Class:
H04W0040000
6.
Jeyaseelan, Jaya L; Gupta, Nitin, "WIRELESS NETWORK ROAMING TIMER METHOD AND APPARATUS"
Inventors:
Jeyaseelan, Jaya L; Gupta, Nitin
Abstract:
A mobile station in a wireless network includes a roaming timer. The roaming timer is set based on various criteria, and when the roaming timer expires, an attempt to roam is performed.
Assignee:
INTEL CORP
Filing Date:
30 September 2003
Grant Date:
30 November 2010
Patent Classes:
Current U.S. Class:
455432100, 370328000, 370331000, 370338000, 455041200, 455067110, 455434000, 455435200, 455442000
Current International Class:
H04W0040000
7.
MURUGESU, Saravanan; MURUGESU, Gukhan, "CHANNEL SELECTION IN A WIRELESS NETWORK"
Inventors:
MURUGESU, Saravanan; MURUGESU, Gukhan
Abstract:
The present invention provides a method for selecting a channel in a wirelessnetwork. A wireless terminal counts a number of transmitted frames; performsa first weighting of the frames received on each channel; performs a second weightingof the frames received from each access point and then selects the access pointhaving the highest total weighting and with a signal to noise ratio that exceedsa predetermined threshold.
Assignee:
BRITISH TELECOMMUNICATIONS PUBLIC LTD CO,
INDIVIDUAL PATENTER,
Filing Date:
14 March 2008
Grant Date:
16 October 2008
Patent Classes:
Current International Class:
H04Q0073200000
8.
JEYASEELAN, Jaya; GUPTA, Nitin, "WIRELESS NETWORK ROAMING TIMER METHOD AND APPARATUS"
Inventors:
JEYASEELAN, Jaya; GUPTA, Nitin
Abstract:
A mobile station in a wireless network includes a roaming timer. The roaming timer is set based on various criteria of the current association between the mobile station and an access point and when the roaming timer expires, an attempt to roam is performed.
Assignee:
INTEL CORP
Filing Date:
29 September 2004
Grant Date:
12 July 2006
Patent Classes:
Current International Class:
H04L0122800000, H04L0125600000, H04Q0073800000
9.
Cheng, Fang-Chen; Hu, Teck; Palat, Sudeep Kumar; Tatesh, Said, "Fast handover with reduced service interruption for high speed data channels in a wireless system"
Inventors:
Cheng, Fang-Chen; Hu, Teck; Palat, Sudeep Kumar; Tatesh, Said
Abstract:
A method is provided for controlling a wireless communications system. The method comprises communicating data to a first base station, and selecting a switchover time for ceasing communications with the first base station and beginning communications with a second base station. The switchover time is based on channel conditions associated with the communications to the first and second base stations, such as SIR.![]()
Assignee:
LUCENT TECHNOLOGIES INC
Filing Date:
29 September 2005
Grant Date:
03 May 2006
Patent Classes:
Current International Class:
H04L0122800000, H04Q0073800000
10.
JEYASEELAN, Jaya; GUPTA, Nitin, "WIRELESS NETWORK ROAMING TIMER METHOD AND APPARATUS"
Inventors:
JEYASEELAN, Jaya; GUPTA, Nitin
Abstract:
A mobile station in a wireless network includes a roaming timer. The roaming timer is set based on various criteria of the current association between the mobile station and an access point and when the roaming timer expires, an attempt to roam is performed.
Assignee:
INTEL CORP,
INDIVIDUAL PATENTER,
Filing Date:
29 September 2004
Grant Date:
14 April 2005
Patent Classes:
Current International Class:
H04L0122800000, H04L0125600000, H04Q0073800000
