IEEE/ACM Transactions on Networking (TON)
Channel access and interference issues in multi-code DS-CDMA wireless packet (ATM) networks
Wireless Networks - Special issue on wireless multimedia networking
QoS provisioning in micro-cellular networks supporting multiple classes of traffic
Wireless Networks - Special issue on wireless multimedia networking
Toward a framework for power control in cellular systems
Wireless Networks - Special issue transmitter power control
Rate of convergence for minimum power assignment algorithms in cellular radio systems
Wireless Networks - Special issue transmitter power control
Carry-over round robin: a simple cell scheduling mechanism for ATM networks
IEEE/ACM Transactions on Networking (TON)
A slotted CDMA protocol with BER scheduling for wireless multimedia networks
IEEE/ACM Transactions on Networking (TON)
Fair scheduling in wireless packet networks
IEEE/ACM Transactions on Networking (TON)
An uplink CDMA system architecture with diverse QoS guarantees for heterogeneous traffic
IEEE/ACM Transactions on Networking (TON)
A unified wireless LAN architecture for real-time and non-real-time communication services
IEEE/ACM Transactions on Networking (TON)
Adaptive allocation of CDMA resources for network-level QoS assurances
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
A wireless multimedia CDMA system based on transmission power control
IEEE Journal on Selected Areas in Communications
A scheme for throughput maximization in a dual-class CDMA system
IEEE Journal on Selected Areas in Communications
High data-rate packet communications for cellular networks using CDMA: algorithms and performance
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Performance of a priority-based dynamic capacity allocation scheme for wireless ATM systems
IEEE Journal on Selected Areas in Communications
Dynamic reservation TDMA protocol for wireless ATM networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Joint power control and intracell scheduling of DS-CDMA nonreal time data
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
A framework for uplink power control in cellular radio systems
IEEE Journal on Selected Areas in Communications
Resource management framework for collaborative computing systems over multiple virtual machines
Service Oriented Computing and Applications
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We consider a time-slotted W-CDMA system for mobile stations which are connected to the wired internet. We first present an architecture for such a system that is based on a request-permission protocol incorporating power control for "Best Effort" transmissions on the uplink. The requesting mobiles are permitted to transmit in the next time slot with a specified power according to a schedule computed by the Base Station. To devise this scheduling method, we formulate a globally optimizing integer program that maximizes the total weighted sum of all best-effort transmissions in the entire system, keeping in view the diverse target Bit Error Rates for each one. This problem is analysed and decomposed into sub-problems that can be solved locally by each Base Station. We devise two fast heuristics to solve the Base Station's sub-problem, so that the new schedule for each successive slot can be re-computed by each Base Station in a practical timeframe. We show that one heuristic is good enough to produce optimal solutions to the sub-problem in special cases. The method is further enhanced to take account of bandwidth and delay guarantees for other connections. It is also modified to ensure fairness for best-effort code channels suffering from persistent location-dependent errors. Finally, we show that a very similar approach can be used by the Base Station for scheduling on the downlink also, leading to a unified approach to scheduling in both directions. The efficacy of the uplink method is briefly demonstrated by simulations comparing the two variants with each other, and demonstrating that one achieves a consistently higher throughput than the other.