A call admission control scheme for packet data in CDMA cellular communications

Wang, L.; Zhuang, Weihua

doi:10.1109/twc.2006.1611064

Cited by 22 publications

(10 citation statements)

References 18 publications

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“…In [4][5][6], different adaptation schemes were proposed to provide QoS guarantee for a video flow, by managing the playout buffer and adjusting the playback rate at the end user, or adapting the transmission rate according to the channel conditions. Call admission control based QoS provisioning for video traffic in a network environment, e.g., ATM and cellular networks, was investigated in [7,8], using either an effective bandwidth approach or a measurement-based approach. For resource management in mmWave networks, an exclusive region (ER) based resource allocation scheme was proposed in [9] to exploit the spatial multiplexing gain of mmWave WPANs supporting persistent traffic flows.…”

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confidence: 99%

Resource Management and QoS Provisioning for IPTV over mmWave-based WPANs with Directional Antenna

2009

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There is an increasing interest in 60 GHz millimeter-wave (mmWave) communication technologies for multi-Gigabit wireless personal area networks (WPAN), aiming to support broadband multimedia applications. Internet Protocol TV (IPTV) is an emerging killer application which requires high data rate and stringent quality of services (QoS) in terms of delay and packet loss. In this paper, we propose a method to efficiently support high definition video flows in a mmWave-based WPAN with QoS guarantee, considering the characteristics of both the IPTV traffic and the mmWave communication technology. We first quantify the effective bandwidth of IPTV video sources using a simple, two-level Markov traffic model. Considering the overheads of the protocol stack in mmWave WPANs, we then quantify the minimum channel time needed for each IPTV flow. Since mmWave-based WPANs will deploy directional antennas to not only extend the transmission range, but also reduce the interference level to neighboring flows, we further propose an admission control scheme and scheduling algorithm to improve the network resource utilization by taking advantage of concurrent transmissions. Extensive simulations with NS-2 using real video traces have validated our analysis and demonstrated the efficiency and effectiveness of the proposed schemes, which will be an enabling technology for future mmWave-based WPANs supporting IPTV services.

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confidence: 99%

Resource Management and QoS Provisioning for IPTV over mmWave-based WPANs with Directional Antenna

2009

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“…CAC is also critical for packet scheduling (with power allocation) to provide bit-level and packet-level QoS. Interested readers may refer to [22], [48], [69], [71], [75] and references therein.…”

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confidence: 99%

Quality-of-service provisioning and efficient resource utilization in CDMA cellular communications

Jiang

Zhuang

Shen

et al. 2006

IEEE J. Select. Areas Commun.

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Abstract-One of the major challenges in supporting multimedia services over Internet protocol (IP)-based code-division multiple-access (CDMA) wireless networks is the quality-of-service (QoS) provisioning with efficient resource utilization. Compared with the circuit-switched voice service in the second-generation CDMA systems (i.e., IS-95), heterogeneous multimedia applications in future IP-based CDMA networks require more complex QoS provisioning and more sophisticated management of the scarce radio resources. This paper provides an overview of the CDMA-related QoS provisioning techniques in the avenues of packet scheduling, power allocation, and network coordination, summarizes state-of-the-art research results, and identifies further research issues.Index Terms-Code-division multiple-access (CDMA), intercell coordination, multimedia services, packet scheduling, power allocation, quality-of-service (QoS), soft handoff.

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“…We then present the performance gain for the proposed connection admission control policy with ARQ over the system without ARQ schemes, such as the policies discussed in [8] [16].…”

Section: Numerical Examplesmentioning

confidence: 99%

“…As observed in Figures 3-6, in a packetized system which allows a non-zero packet loss probability, this zero packet loss probability leads to an inefficient utilization of the system resource and as a result degrades the connection level performance as well as the overall system throughput. Figures 7-9 compare the performance between a system without ARQ, e.g., [8] [16], and a system with ARQ. In these figures, ARQ = i is equivalent to L 1 = L 2 = i.…”

Section: A Performance Of a Packet-switched Networkmentioning

confidence: 99%