TY - JOUR
T1 - Reducing handover delay by location management in mobile WiMAX multicast and broadcast services
AU - Lee, Ji Hoon
AU - Pack, Sangheon
AU - Kwon, Taekyoung
AU - Choi, Yanghee
N1 - Funding Information:
Manuscript received October 28, 2009; revised March 3, 2010, June 20, 2010, and September 28, 2010; accepted November 18, 2010. Date of publication December 6, 2010; date of current version February 18, 2011. This work was supported in part by the Information Technology Research and Development program of the Ministry of Knowledge Economy/Korea Evaluation Institute of Industrial Technology under Grant 10035245 [Study on Architecture of Future Internet to Support Mobile Environment and Network Diversity] and in part by the World Class University program through the National Research Foundation under Grant R33-2008-000-10044-0. This paper was presented in part at the 2008 IEEE International Conference on Communication System Software and Middleware, Bangalore, India, January 2008. The review of this paper was coordinated by Prof. V. W. S. Wong.
PY - 2011/2
Y1 - 2011/2
N2 - Mobile Worldwide Interoperability for Microwave Access (WiMAX) includes a multimedia multicast/broadcast service (MBS), but delay-sensitive applications such as video and audio streaming require the combination of efficient handling of wireless-link bandwidth and reduced handover delays, which remains a challenge. To reduce the handover delay in the MBS, the IEEE 802.16e standard introduces an MBS zone, which is a group of base stations that are broadcasting the same multicast packets. However, this raises the MBS traffic load on Mobile WiMAX networks, particularly the wireless part. This paper presents an MBS architecture that is based on location-management areas (LMAs), which can increase the sizes of MBS zones to reduce the average handover delay without too much bandwidth waste. An analytical model is developed to quantify service-disruption time, bandwidth usage, and blocking probability for different sizes of MBS zones and LMAs while considering user mobility, user distribution, and MBS session popularity. Using this model, we also propose how to determine the best sizes of MBS zones and LMAs, along with performance guarantees. Analytical and simulation results demonstrate that our LMA-based MBS scheme can achieve a bandwidth-efficient multicast delivery while retaining an acceptable service-disruption time.
AB - Mobile Worldwide Interoperability for Microwave Access (WiMAX) includes a multimedia multicast/broadcast service (MBS), but delay-sensitive applications such as video and audio streaming require the combination of efficient handling of wireless-link bandwidth and reduced handover delays, which remains a challenge. To reduce the handover delay in the MBS, the IEEE 802.16e standard introduces an MBS zone, which is a group of base stations that are broadcasting the same multicast packets. However, this raises the MBS traffic load on Mobile WiMAX networks, particularly the wireless part. This paper presents an MBS architecture that is based on location-management areas (LMAs), which can increase the sizes of MBS zones to reduce the average handover delay without too much bandwidth waste. An analytical model is developed to quantify service-disruption time, bandwidth usage, and blocking probability for different sizes of MBS zones and LMAs while considering user mobility, user distribution, and MBS session popularity. Using this model, we also propose how to determine the best sizes of MBS zones and LMAs, along with performance guarantees. Analytical and simulation results demonstrate that our LMA-based MBS scheme can achieve a bandwidth-efficient multicast delivery while retaining an acceptable service-disruption time.
KW - Broadband wireless
KW - Worldwide Interoperability for Microwave Access (WiMAX)
KW - broadcast
KW - multicast
KW - multicast/broadcast service (MBS)
KW - multimedia streaming
UR - http://www.scopus.com/inward/record.url?scp=79951921771&partnerID=8YFLogxK
U2 - 10.1109/TVT.2010.2096831
DO - 10.1109/TVT.2010.2096831
M3 - Article
AN - SCOPUS:79951921771
VL - 60
SP - 605
EP - 617
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
SN - 0018-9545
IS - 2
M1 - 5658173
ER -