Data networks
Hot-spot congestion relief and service guarantees in public-area wireless networks
ACM SIGCOMM Computer Communication Review
Resource Allocation in Hierarchical Cellular Systems
Resource Allocation in Hierarchical Cellular Systems
UMTS Networks: Architecture, Mobility and Services
UMTS Networks: Architecture, Mobility and Services
Adaptive Rate Control Scheme for Video Streaming Over Wireless Channels
DCC '04 Proceedings of the Conference on Data Compression
Fairness and load balancing in wireless LANs using association control
Proceedings of the 10th annual international conference on Mobile computing and networking
Wireless Communications & Mobile Computing - Special Issue: WLAN/3G Integration for Next-Generation Heterogeneous Mobile Data Networks
The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Second Edition
The 3G IP Multimedia Subsystem (IMS): Merging the Internet and the Cellular Worlds, Second Edition
HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications
HSDPA/HSUPA for UMTS: High Speed Radio Access for Mobile Communications
Journal of Systems and Software
A reversible hierarchical scheme for microcellular systems with overlaying macrocells
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 1
Channel assignment schemes for cellular mobile telecommunication systems: A comprehensive survey
IEEE Communications Surveys & Tutorials
Real-time video transport optimization using streaming agent over 3G wireless networks
IEEE Transactions on Multimedia
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
IEEE Journal on Selected Areas in Communications
A design of macro-micro CDMA cellular overlays in the existing big urban areas
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Multicast and unicast real-time video streaming over wireless LANs
IEEE Transactions on Circuits and Systems for Video Technology
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Wireless networks have focused on voice call services or wireless Internet access services. These days, the application service domain of wireless networks is rapidly expanding, and a wide variety of new services is emerging. Video streaming service is one of the most promising examples, evidenced by 3GPP's MBMS (Multimedia Broadcast Multicast Service) and IMS (IP Multimedia Subsystem). In this paper, we consider the provision of video streaming services in hierarchical wireless networks with multiple layers of cells. We particularly focus on optimal load balancing among the cells, aiming at the minimization of frame drop ratio for given video streaming sessions. From this objective function, we derive the optimal load balancing condition. Load balancing is essentially the issue of which users are assigned to which cell, i.e., the user assignment problem. In our user assignment algorithm, we compute thresholds to divide users into groups according to the user characteristics, and map the user groups to proper cells. The optimal load balancing condition can be reached by adaptively adjusting the threshold at run time. This process does not require prior knowledge about the system status, such as the system capacity or user traffic requests, which warrants the practicality of the proposed scheme. Via simulations, we demonstrate that the proposed scheme achieves optimal load balancing in various realistic environments.