QoS-oriented packet scheduling for wireless multimedia CDMA communications

Huang, Vincent; Zhuang, Weihua

doi:10.1109/tmc.2004.1261818

Cited by 47 publications

(41 citation statements)

References 19 publications

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“…The request and update messages can be transmitted in a request channel, or piggybacked in the transmitted uplink packets to avoid possible contention in the request channel. The BS responds by broadcasting transmission decisions to MSs [32], [71], [72].…”

Section: Packet Scheduling With Power Allocationmentioning

confidence: 99%

“…When this happens, it is essential to distribute packet dropping among all the MSs in an appropriate way, as different traffic types have different levels of packet loss tolerance. This means a packet scheduling algorithm with fair packet loss sharing (called FPLS) [32] is needed. The FPLS scheduler can be designed such that each MS experiences packet dropping fairly according to its PLR requirement.…”

Section: B Time Scheduling With Delay Boundmentioning

confidence: 99%

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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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Section: Packet Scheduling With Power Allocationmentioning

confidence: 99%

Section: B Time Scheduling With Delay Boundmentioning

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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“…One major challenge in UWB MAC design is the QoS provisioning with an efficient resource allocation scheme [17,21,22]. Although there have been large researches on real time traffic (voice and video) [22,23], not too much work takes into account the unique characteristics of UWB.…”

Section: −αmentioning

confidence: 99%

“…Although there have been large researches on real time traffic (voice and video) [22,23], not too much work takes into account the unique characteristics of UWB.…”

Section: −αmentioning

confidence: 99%

Proposed Mac Protocol Versus Ieee 802.15.3A for Multimedia Transmission Over Uwb Networks

El-Fishawy¹,

Shokair²,

Saad³

2008

PIER B

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Abstract-In this paper, a Medium Access Control (MAC) protocol is proposed to investigate Quality of Service (QoS) for multimedia traffic transmitted over Ultra Wide-Band (UWB) networks and increase the system capacity. This enhancement comes from using Wise Algorithm for Link Admission Control (WALAC) which has three suggested versions. The QoS of multimedia transmission is determined in terms of average delay, admission ratio, loss probability, utilization, and the network capacity. In addition, a new parameter is aroused for the network performance. Comparisons between the IEEE 802.15.3a protocol and the proposed one are done. The proposed protocol shows better results in both sparse and dense networks for real time traffic transmission.

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“…In this paper, we propose novel methods to optimize multimedia transport across the physical and medium access control (MAC) layers of multicode code division multiple access (CDMA) wireless systems. As multicode CDMA can flexibly provide diverse transmission rates to a variety of devices over a shared wireless channel, it has been extensively studied in both academic and industry research [1], [2], [3], [4], [5], [6], [7], [8]. It has also been adopted in the Universal Mobile Telecommunications System (UMTS) [9] and high-speed downlink packet access (HSDPA) [10] standard and will continue to be used in many current and future wireless communication systems [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Cross-Layer Optimization for Multimedia Transport over Multicode CDMA Networks

Chen

Chan

Leung

2011

IEEE Trans. on Mobile Comput.

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Abstract-Most previous work on code division multiple access (CDMA) considers the bit error ratio (BER) at the physical layer and the frame drop ratio (FDR) at the medium access control layer separately. However, a better system performance, e.g., in terms of a lower overall frame loss ratio (FLR), can be achieved if BER and FDR are jointly optimized. In this paper, we propose a cross-layer optimization scheme called traffic-adaptive scheme for multicode CDMA operating over a time division multiple access (TDMA) channel. Based on the traffic condition and buffer status, this scheme employs a Markov Decision Process (MDP) to determine the optimal value of the maximum number of simultaneous data frames that can be transmitted in each time slot of a TDMA frame so as to minimize the overall FLR of the system. To facilitate implementation, we also propose an approximation scheme named the rateadaptive scheme to reduce the computation cost. Simulation and analytical results show that both the traffic-adaptive scheme and rate-adaptive scheme can significantly reduce FLR, increase the system throughput, and optimize the packet access delay of the system. Furthermore, the rate-adaptive scheme can achieve a performance close to the traffic-adaptive scheme when the traffic load in the system is high.

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QoS-oriented packet scheduling for wireless multimedia CDMA communications

Cited by 47 publications

References 19 publications

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

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

Proposed Mac Protocol Versus Ieee 802.15.3A for Multimedia Transmission Over Uwb Networks

Cross-Layer Optimization for Multimedia Transport over Multicode CDMA Networks

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