Modeling TCP throughput: a simple model and its empirical validation
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Analysis of TCP performance over mobile ad hoc networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
A new model for packet scheduling in multihop wireless networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Proportional differentiated services: delay differentiation and packet scheduling
IEEE/ACM Transactions on Networking (TON)
TCP Performance in Wireless Multi-hop Networks
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
End-to-end throughput and delay assurances in multihop wireless hotspots
Proceedings of the 1st ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Quality of service assurances in multihop wireless networks
Quality of service assurances in multihop wireless networks
RSVP and integrated services in the Internet: a tutorial
IEEE Communications Magazine
Does the IEEE 802.11 MAC protocol work well in multihop wireless ad hoc networks?
IEEE Communications Magazine
Improving UDP and TCP performance in mobile ad hoc networks with INSIGNIA
IEEE Communications Magazine
QoS assurances through class selection and proportional differentiation in wireless networks
IEEE Journal on Selected Areas in Communications
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Next generation Wireless Local Area Networks (WLAN's) are likely to require multihop wireless connections between mobile nodes and Internet gateways to achieve high data rates from larger distances. The paper addresses the challenges in concurrently providing a wide range of end-to-end throughput and delay assurances in such mobile multihop WLAN hotspots. The proposed solution is based on the Neighborhood Proportional Delay Differentiation (NPDD) service model. With NPDD, Transmission Control Protocol (TCP) based applications achieve their desired throughputs using a dynamic class selection mechanism. This approach integrates well with the NPDD-based end-to-end delay assurance mechanism proposed earlier. To better model the node mobility in a multihop hotspot in our simulation studies, the Public Hotspot Mobility (PHM) model is proposed. Simulation results show that the proposed solution is better in meeting the desired throughputs and delays as compared with best effort and strict priority approaches. Recent theoretical analyses show that the NPDD model with a continuous range of classes can guarantee convergence to desirable QoS through dynamic class selection. However, the overhead of realizing the continuous class scheduler is high. We propose two continuous NPDD schedulers, the Single Queue Continuous NPDD (SQ-CNPDD) scheduler and the Multiple Queue Continuous NPDD (MQ-CNPDD) scheduler, to realize the continuous NPDD model. With simulations, the performance of SQ-CNPDD and MQ-CNPDD are compared to that of NPDD.