Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks (QSHINE'05)

24-24 Aug. 2005

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  • Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks - Title Page

    Publication Year: 2005, Page(s): i
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  • Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks - Copyright

    Publication Year: 2005, Page(s): iv
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  • Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks - Table of contents

    Publication Year: 2005, Page(s):v - viii
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  • Message from the General Chair

    Publication Year: 2005, Page(s):ix - x
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  • Message From the Technical Program Chair

    Publication Year: 2005, Page(s):xi - xii
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  • Organizing Committee

    Publication Year: 2005, Page(s):xiii - xvi
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  • Technical Program Committee

    Publication Year: 2005, Page(s):xvii - xviii
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  • Corporate sponsors

    Publication Year: 2005, Page(s): xix
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  • Evolution of wireless communications and networking

    Publication Year: 2005, Page(s):2 pp. - xxi
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (103 KB) | HTML iconHTML

    Summary form only given. Over the ages, research in wireless communications has been evolving through a quest for answers to the fundamental questions: why, what and how? Why do people, separated by physical distances, cannot hear each other talking? Alexander Graham Bell's invention of the telephone was driven by this curiosity; so was Guglielmo Marconi's telegraphic signalling across the Atlanti... View full abstract»

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  • QoS routing: challenges and solution approaches

    Publication Year: 2005, Page(s):2 pp. - xxii
    Cited by:  Papers (2)
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    Summary form only given. Broadband integrated services networks are expected to support multiple and diverse applications with various quality of service (QoS) requirements. Accordingly, a major issue in the design of broadband architectures is how to provide the resources in order to meet the requirements of each connection, and, moreover, how to meet this goal in a networkwide efficient manner. ... View full abstract»

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  • Technological enablers of the IEEE wireless metropolitan area network (IEEE 802.16)

    Publication Year: 2005, Page(s):1 pp. - xxiii
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  • Link scheduling with power control for throughput enhancement in multihop wireless networks

    Publication Year: 2005, Page(s):8 pp. - 1
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (274 KB) | HTML iconHTML

    Throughput is an important performance consideration for multihop wireless networks. In this paper, we study the joint link scheduling and power control problem, focusing on maximizing the network throughput. We formulate the maximum throughput link scheduling with power control (MATH-SPC) problem, and present a mixed integer linear programming (MILP) formulation to provide optimal solutions. Howe... View full abstract»

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  • Power allocation and scheduling for MAC layer design in UWB networks

    Publication Year: 2005, Page(s):8 pp. - 2
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (292 KB) | HTML iconHTML

    This paper proposes a practical joint power allocation and scheduling scheme for medium access control (MAC) layer design in ultra-wideband (UWB) networks. The scheme increases system spectral efficiency and reduces power consumption by fully considering the properties of the UWB, such as its capacity in supporting parallel transmission and providing accurate positioning, and its stringent constra... View full abstract»

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  • Provisioning link layer proportional service differentiation in wireless networks with smart antennas

    Publication Year: 2005, Page(s):8 pp. - 3
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (289 KB) | HTML iconHTML

    In this paper, we present a collision free MAC protocol for wireless networks with smart antennas that provides proportional service differentiation to various classes of traffic based on their respective bandwidth demand. The proposed protocol works for diverse physical parameters such as number of interfaces at each node, number of communication frequencies, and antenna beamwidth. To the best of... View full abstract»

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  • Opportunistic multichannel Aloha for clustered OFDM wireless networks

    Publication Year: 2005, Page(s):8 pp. - 4
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (440 KB) | HTML iconHTML

    We consider multi-access control for the uplink in OFDMA networks. Assuming that subcarriers are grouped into clusters, we investigate multichannel random access based on local channel state information, and propose an opportunistic multichannel Aloha scheme to maximize the system throughput. A key step is to build a mapping from a user's channel state information to its transmission probability a... View full abstract»

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  • Maintaining reliability through activity management in 802.15.4 sensor networks

    Publication Year: 2005, Page(s):10 pp. - 5
    Cited by:  Papers (5)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (347 KB) | HTML iconHTML

    Achieving the desired data rate from a sensor network while simultaneously maximizing the lifetime of individual sensors are somewhat conflicting goals, further complicated by the fact that collisions at the MAC layer will affect both the throughput and power consumption. We address this problem in the context of a beacon enabled 802.15.4 sensor network by analytically modeling the network reliabi... View full abstract»

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  • Distributed source coding in wireless sensor networks

    Publication Year: 2005, Page(s):7 pp. - 6
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (239 KB) | HTML iconHTML

    This paper offers a practical distributed data compression in wireless sensor networks based on convolutional code and turbo code. An improved Viterbi algorithm for distributed source coding (VA-DSC) is proposed to take the advantage of the known parity bits at the decoder. When the algorithm is applied to recursive systematic convolutional (RSC) and turbo codes, it can decrease both the decoding ... View full abstract»

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  • Energy-Efficient Data Aggregation Hierarchy for Wireless Sensor Networks

    Publication Year: 2005, Page(s): 7
    Cited by:  Papers (15)  |  Patents (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    A network of sensors can be used to obtain state-based data from the area in which they are deployed. To reduce costs, the data, sent via intermediate sensors to a sink, is often aggregated (or compressed). This compression is done by a subset of the sensors called aggregators. Since sensors are usually equipped with small and unreplenishable energy reserves, a critical issue is to strategically d... View full abstract»

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  • On base station selection for anycast flow routing in energy-constrained wireless sensor networks

    Publication Year: 2005, Page(s):9 pp. - 8
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (420 KB) | HTML iconHTML

    Energy constraints have had a significant impact on the design and operation of wireless sensor networks. In this paper, we investigate base station selection (or anycast) problem in wireless sensor networks. We consider a wireless sensor network having multiple base stations (data sink nodes), where each source node must send all its locally generated data to only one base station. To maximize th... View full abstract»

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  • Voice capacity analysis of WLAN with unbalanced traffic

    Publication Year: 2005, Page(s):8 pp. - 9
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    We evaluate the performance of voice transmission over a single-AP WLAN analytically and via simulation. Given the parameters of the medium access control protocol and different voice codecs, the voice capacity of the WLAN, in terms of the maximum number of voice connections that can be supported by the WLAN with satisfactory user-perceived quality, is obtained. Our analysis is applicable for unsa... View full abstract»

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  • QoS mechanisms for the MAC protocol of IEEE 802.11 WLANs

    Publication Year: 2005, Page(s):10 pp. - 10
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    There are two essential ingredients for any telecommunications system to be able to provide quality-of-service (QoS) guarantees: admission control (CAC) and service differentiation. In wireless local area networks (WLANs), it is essential to carry out these functions at the MAC level. The original version of IEEE 802.11 medium access control (MAC) protocol for WLANs does not include either functio... View full abstract»

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  • Admission control with load balancing in IEEE 802.11-based ESS mesh networks

    Publication Year: 2005, Page(s):8 pp. - 11
    Cited by:  Papers (5)  |  Patents (6)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (268 KB) | HTML iconHTML

    In this paper we study admission control in IEEE 802.11-based ESS mesh networks. An analytical model is developed for studying the mesh network capacity. Based on this, a distributed connection admission control (CAC) scheme is proposed, which incorporates load balancing in selecting a mesh path for a new connection. Our results show that connection level performance, including both average number... View full abstract»

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  • Self-regulating network utilization in mobile ad-hoc wireless LANs

    Publication Year: 2005, Page(s):6 pp. - 12
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (276 KB) | HTML iconHTML

    Self-regulating network utilization is very important to the wireless network service providers to carry out new services such as wireless network gaming, which means that more users with a prepaid level of quality of service can be accommodated in a bandwidth limited network. However, in mobile ad-hoc wireless LANs, it is very difficult to regulate network utilization due to the time-varying natu... View full abstract»

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  • Performance analysis of UMTS handover with the help of WLAN

    Publication Year: 2005, Page(s):8 pp. - 13
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (315 KB) | HTML iconHTML

    By most predictions, fourth-generation wireless systems will be composed of heterogeneous networks. Two important constituent networks will be wireless LAN (WLAN) and cellular mobile radio systems (e.g., UMTS). WLAN is designed for low-range, high/medium data rate access and can be used as a complement to larger cellular mobile radio systems. In this paper, we consider a heterogeneous system in wh... View full abstract»

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  • Load balancing routing in multi-channel hybrid wireless networks with single network interface

    Publication Year: 2005, Page(s):8 pp. - 14
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (364 KB) | HTML iconHTML

    A hybrid wireless network is an extension to an infrastructure network, where a mobile host may connect to an access point using multi-hop wireless routes, via other mobile hosts. The access points are configured to operate on one of multiple available channels. Mobile hosts and wireless routers can select its operating channel dynamically through channel switching. In this environment, we propose... View full abstract»

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