Proceedings ArticleDOI
QoS Considerations for HSDPA and Performance Results for Different Services
Klaus I. Pedersen,Preben Mogensen,Troels Kolding +2 more
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TLDR
Network performance results for different services over HSDPA, ranging from simple best effort traffic, to constant bit rate streaming, and voice over IP are shown, showing capacity gains of up to 40% from using QoS-aware packet scheduling.Abstract:
The functional split between the centralized radio network controller (RNC) and the base station (node-B) presents new challenges and opportunities for implementing QoS control for HSDPA. In this paper we present different options for implementing QoS over HSDPA, and we focus particularly on the shared responsibility between the QoS aware algorithms at the RNC and the node-B. Different strategies for QoS aware node-B packet schedulers are discussed. The paper is concluded with network performance results for different services over HSDPA, ranging from simple best effort traffic, to constant bit rate streaming, and voice over IP. For these services we show capacity gains of up to 40% from using QoS-aware packet scheduling.read more
Citations
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Proceedings ArticleDOI
The impact of QoS support on the end user satisfaction in LTE networks with mixed traffic
Iana Siomina,Stefan Wänstedt +1 more
TL;DR: This paper presents a system simulation study for two-service scenarios with VoIP and a second service represented by real-time video, mobile TV, or web surfing, and demonstrates that traffic differentiation and service prioritization are particularly crucial when a delay-critical service is in combination with delay-insensitive intensive traffic.
Proceedings ArticleDOI
Strategies for Mobile Broadband Growth: Traffic Segmentation for Better Customer Experience
TL;DR: In the analyzed cases, using the proposed QoS functions, simulation results for 3GPP High Speed Packet Access (HSPA) showed a spectral efficiency gain up to circa 30%; or, equivalently, a potential sites saving of about 22%, for serving the same amount of satisfied traffic on the best effort with capacity over provisioning.
Patent
Downloading video in mobile networks
TL;DR: In this paper, a method and network entity for downloading detected video packets is proposed, which uses MinBR and SBR as a minimum bit rate limit and a maximum rate limit respectively between which the bit rate for delivering video in case of congestion is defined.
Journal ArticleDOI
Exploiting and Defending Opportunistic Scheduling in Cellular Data Networks
TL;DR: This work demonstrates that rogue cellular devices can exploit vulnerabilities in popular opportunistic scheduling algorithms, such as Proportional Fair (PF) and Temporal Fair (TF), to usurp the majority of time slots in 3G networks, and proposes a robust handoff scheme to defend against this attack.
Proceedings ArticleDOI
Normalized Rate Guarantee Scheduler for High Speed Downlink Packet Access
Kamal Deep Singh,David Ros +1 more
TL;DR: This paper considers different QoS classes or user groups and study resource allocation among those user groups using HSDPA MAC-layer scheduling and proposes a normalized rate guarantee (NRG) scheduler, which is an extension of a previous QoS scheduler by Hosein (2002).
References
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BookDOI
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
Harri Holma,Antti Toskala +1 more
TL;DR: In this article, the authors provide a complete picture of the Wideband CDMA (Code Division Multiple Access) air interface of the 3rd generation cellular systems - UMTS (Universal Mobile Telecommunications Systems).
Journal ArticleDOI
Providing quality of service over a shared wireless link
Matthew Andrews,Krishnan Kumaran,Kavita Ramanan,Alexander L. Stolyar,Philip Whiting,R. Vijayakumar +5 more
TL;DR: It is shown how scheduling algorithms exploiting asynchronous variations of channel quality can be used to maximize the channel capacity and maximize the number of users that can be supported with the desired QoS.
Proceedings ArticleDOI
Asymptotic analysis of proportional fair algorithm
TL;DR: A more general result for two classes of users with different fading characteristics is given-the user class with more fading variability gets more throughput with a lower fraction of time transmitting.
Book
UMTS Networks: Architecture, Mobility and Services
TL;DR: UMTS Network provides a comprehensive introduction and reference to third-generation mobile systems, suitable for individuals at a variety of knowledge levels.