173 Hits in 4.0 sec

Performance Analysis of a Live Mobile Broadband-HSDPA Network

Fourat Haider, Erol Hepsaydir, Nicola Binucci
2011 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)  
Although HSDPA network performance was studied by other researchers, the aim of this paper is to analyse the Iub backhaul limitations with different traffic types through simulations.  ...  User traffic data was imported from the live network in Maidenhead and used in these simulations.  ...  The NodeB buffers these packets and according to the scheduling algorithm, it transmits the packets to users over the air interface.  ... 
doi:10.1109/vetecs.2011.5956253 dblp:conf/vtc/HaiderHB11 fatcat:mvkqylzvyfdpfmnljq7n3lx4vq

Scheduling Support for Mixed VoIP and Web Traffic over HSDPA

Mats Folke, Sara Landstrom, Ulf Bodin, Stefan Wanstedt
2007 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring  
We explain the performance of four scheduling algorithms when transmitting a traffic mix consisting of both conversational (VoIP) traffic and background (web) traffic over the high-speed downlink shared  ...  The short TTI together with appropriate scheduling enable HSDPA to support efficient multiplexing of traffic.  ...  So far most of the scheduling algorithms proposed for timeshared wireless systems, such as HSDPA and EvDO, focus on supporting either best-effort, streaming or conversational traffic.  ... 
doi:10.1109/vetecs.2007.177 dblp:conf/vtc/FolkeLBW07 fatcat:r2zbnuwusbh6zjguqtgttirnam

Novel Radio Link Buffer Management Schemes for End-User Multi-class Traffic in High Speed Packet Access Networks

Suleiman Y. Yerima, Khalid Al-Begain
2010 Wireless personal communications  
Hence, in this paper we present and evaluate novel HSDPA radio link buffer management schemes for QoS control of multimedia traffic comprising concurrent RT and NRT flows in the same HSDPA end-user session  ...  Both schemes are based on a Time-Space Priority (TSP) queuing system, which provides joint delay and loss differentiation between the flows by queuing (partially) loss tolerant RT flow packets for higher  ...  The authors are grateful for the support of Higher Education Council for Wales (HFCE) ORSAS scheme in the duration of this work.  ... 
doi:10.1007/s11277-010-0027-3 fatcat:ki3smwj6pbcevibp6vegvi2puy

An Enhanced Buffer Management Scheme for Multimedia Traffic in HSDPA [article]

Suleiman Y. Yerima, Khalid Al-Begain
2016 arXiv   pre-print
High Speed Downlink Packet Access (HSDPA) was introduced to UMTS radio access segment to provide higher capacity for new packet switched services.  ...  As a result, packet switched sessions with multiple diverse traffic flows such as concurrent voice and data, or video and data being transmitted to the same user are a likely commonplace cellular packet  ...  Mean Node B queuing delay of VoIP in the mixed multimedia traffic for both schemes is shown in figure 6 .  ... 
arXiv:1608.00855v1 fatcat:6rxq5khvunburixktyoc5faehm

Comparative Performance Study of LTE Downlink Schedulers

Arkadiusz Biernacki, Kurt Tutschku
2013 Wireless personal communications  
The evaluation takes place in mixed traffic scenarios and aims at exploring strengths and weaknesses of the proposed algorithms.  ...  In this work, we evaluate the performance of three scheduling algorithms proposed for LTE downlink transmission.  ...  The results show that the M-LWDF algorithm is a viable solution for scheduling streaming flows in the HSDPA.  ... 
doi:10.1007/s11277-013-1308-4 fatcat:4nyrl7xoenh5jdniqkuverxmle

Performance Evaluation and Traffic Modeling [chapter]

Hans van den Berg, Thomas M. Bohnert, Orlando Cabral, Dmitri Moltchanov, Dirk Staehle, Fernando Velez
2009 Lecture Notes in Electrical Engineering  
The first part presents models for evaluating the impact of flow-level traffic dynamics in large-scale wireless networks.  ...  Models dealing with flow-level performance are presented in Section 3.2.1, and Section 3.2.2 focuses on packet-level models.  ...  High Speed Downlink Packet Access (HSDPA) and Enhanced Uplink or High Speed Uplink Packet Access (HSUPA) brought new challenges for UMTS traffic models because they are the first really packet-switched  ... 
doi:10.1007/978-0-387-85573-8_3 fatcat:47tdrgbgbrgotefaeg76jodfou

Packet Scheduling and Congestion Control [chapter]

Giovanni Giambene, Mari Carmen Aguayo Torres, Edmundo Monteiro, Michal Ries, Vasos Vassiliou
2009 Lecture Notes in Electrical Engineering  
Novel Buffer Management Scheme for Multimedia Traffic in HSDPA This section is concerned with the management of multimedia traffic over HSDPA.  ...  Based on the scheduling algorithm, as well as the traffic characteristics of the multiplexed flows, certain QoS levels can be obtained.  ... 
doi:10.1007/978-0-387-85573-8_2 fatcat:bplrvodlhzfc7o4ze3rlfdpsgq

Utility-based Scheduling Frameworks to Provide Efficient Quality-of-Service Differentiation in a Mixture of Real-time and Non-real-time Traffics

Olalekan Bello, Hushairi Zen, AL-Khalid Othman, Khairuddin Abdul Hamid
2015 Journal of Computer Science  
This paper proposes a utility-based scheduling framework for efficient differentiation of users' Quality-of-Service (QoS) in a broadband wireless access system involving heterogeneous mixed traffic flows  ...  scheduling policy for Non-Real-Time (NRT) and a throughputbased scheduling policy for Best-Effort (BE) services.  ...  Hushairi Zen: Designed the discrete-level simulation algorithm and tested the model. AL-Khalid Othman: Analyzed and interpreted the results.  ... 
doi:10.3844/jcssp.2015.845.854 fatcat:4pqflsa6afg4rcs3y6kfijldn4

QoS parameters mapping for the e-learning traffic mix in LTE networks

V. H. Muntean, M. Otesteanu, G.-M. Muntean
2010 2010 International Joint Conference on Computational Cybernetics and Technical Informatics  
mix, is deployed over a Long Term Evolution network.  ...  The best results are obtained in combination with the proportional fair scheduling algorithm, while round robin and maximum throughput schedulers' satisfaction rate does not go over 50% in our simulation  ...  References [10] and [11] are analyzing the packet scheduling of mixed traffic in LTE DL.  ... 
doi:10.1109/icccyb.2010.5491266 fatcat:abxzadhhsbcxncom3iqjpj7jhq

QoE-Driven Cross-Layer Optimization for High Speed Downlink Packet Access

Srisakul Thakolsri, Shoaib Khan, Eckehard Steinbach, Wolfgang Kellerer
2009 Journal of Communications  
Section V gives simulation Specific scheduling schemes for different applications, results and our conclusions are drawn in Section VI. e.g., video streaming and voice over IP (VoIP) over HSDPA, are  ...  ., “Streaming applications over HSDPA given system resources and a fixed number of users, and in mixed service scenarios,” in IEEE Vehicular Technology the admission of more users for  ... 
doi:10.4304/jcm.4.9.669-680 fatcat:y3annna4lbcenplhtase7oikr4


2012 Journal of Computer Science  
In this study, we propose to design a call admission control algorithm which schedules the channels for Real time and non-real time users.  ...  Resource allocation is made for VoIP users based on traffic density.  ...  Science Publications JCS Related Work Makara and Ventura (2011) have proposed a scheme that is optimized for offering improved quality of service for a diverse mix of traffic including real-time VBR  ... 
doi:10.3844/jcssp.2012.2025.2031 fatcat:rhtln7go4bak7is4t5w5ozbt7y

A MAC Centric Cross Layer Approach for H.264 Video Streaming over HSDPA

Salim Benayoune, Nadjib Achir, Khaled Boussetta, Ken Chen
2009 Journal of Communications  
This paper proposes a MAC centric cross-layer approach for H.264 video streaming over HSDPA wireless links.  ...  H.264 encoder) in order to give video packets different importance values according to the semantic of their contents.  ...  There are per-flow queues in the RNC and a credit-based algorithm flow control between Node B and RNC. The MAC layer implements the HSDPA scheduler and other functionalities like HARQ.  ... 
doi:10.4304/jcm.4.9.691-699 fatcat:dxdg2glcjvaxjpc2sqnr5jwgqi

Utility Based Scheduling and Call Admission Control for LTE (3GPP) Networks

Vijay Franklin J
2012 Journal of Information Technology & Software Engineering  
Resource allocation is made for VoIP users based on traffic density.  ...  In this paper, we propose to design a call admission control algorithm which schedules the channels for real time and non-real time users based on Utility function.  ...  Makara and Ventura [15] , have proposed a scheme that is optimized for offering improved quality of service for a diverse mix of traffic including real-time VBR traffic in the downlink of LTE networks  ... 
doi:10.4172/2165-7866.1000113 fatcat:b2b6zxjrmrashaunxyeoj6j26y

A survey of MAC based QoS implementations for WiMAX networks

Y. Ahmet Şekercioğlu, Milosh Ivanovich, Alper Yeğin
2009 Computer Networks  
Acknowledgement Many thanks to Hyoung-Kyu Lim and Jungshin Park of Samsung for their valuable comments on improving the contents of the paper.  ...  Weight based scheduling algorithm [8] is used for nrtPS connections and round robin scheduling algorithm [15] for BE traffic.  ...  Traffic Control determines how packet marking, scheduling and shaping (flow rate control) is performed for packet traffic generated by a given application or user.  ... 
doi:10.1016/j.comnet.2009.05.001 fatcat:a2jtq4fdcvg2tdyrgv2amclzpu

Sensitivity Analysis of the Optimal Parameter Settings of an LTE Packet Scheduler

I. Fernandez Diaz, D. C. Dimitrova, K. Spaey, R. Litjens, J. L. van den Berg
2010 2010 IEEE 71st Vehicular Technology Conference  
For our investigations we consider a reference packet scheduling algorithm containing elements of proportional fairness and packet urgency to support mixes of real-time and non-real-time traffic.  ...  In this paper we study the sensitivity of the optimal parameter setting for packet scheduling in LTE radio networks with respect to various traffic and environment aspects.  ...  The reference packet scheduler, containing elements of proportional fairness and packet urgency, supports mixes of real-time and non real-time traffic.  ... 
doi:10.1109/vetecs.2010.5493981 dblp:conf/vtc/DiazDSLB10 fatcat:evmbbqxydvegnluh2g6drewnxe
« Previous Showing results 1 — 15 out of 173 results