Maximizing Downlink Bandwidth Allocation Method Based on SVC in Mobile WiMAX Networks for Generic Broadband Services

Hwang, I‐Shyan; Hwang, Bor‐Jiunn; Su, Ruey-Rong

doi:10.5402/2011/672195

Cited by 7 publications

(6 citation statements)

References 17 publications

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“…Savings in radio spectrum for all three scenarios are compared in Table 14. Simulation results for the proposed scheme in Scenarios B and C indicate advantages of using user distribution information to optimize MCS selection for different layers, compared to MCS selection schemes presented in references [6,7]. Savings of radio spectrum in the order of 72 to 82% is observed with the proposed method in different channel quality distributions.…”

Section: Scenario C: Users Only In High Channel Quality Regionmentioning

confidence: 81%

“…Users are distributed in all channel quality regions in this scenario. This corresponds to previous work on single cell multicast cellular systems with static adaptive modulation and coding selection for video layers [6,7]. In this case base layer is sent with MCS 1, EL 1 is sent with MCS 12, and EL 2 is sent with MCS 19.…”

Section: Multicast Adaptation Scheme For Mbsfnmentioning

confidence: 99%

“…This can be used in single-cell MBMS service to provide basic quality to cell edge or low channel quality users and to provide high quality videos to high channel quality users. Some of the previous papers [6,7] present options of sending one video stream with multiple modulations and coding schemes in cellular networks. However, authors use multicasting in single cell networks and MCS decisions are not optimized based on user distribution.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cross Layer Design for Efficient Video Streaming over LTE Using Scalable Video Coding

Radhakrishnan¹,

Tirouvengadam²,

Nayak³

2012

NPA

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Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) offers high data rate capabilities to mobile users, and network operators are trying to deliver a true mobile broadband experience over LTE networks. Mobile TV and Video on Demand (VoD) are expected to be the main revenue generators in the near future, and efficient video streaming over wireless is the key to achieve this goal. Video services use both unicast and multicast video transmission based on its applications. Enhanced Multimedia Broadcast/Multicast Service (EMBMS) is defined in 3GPP specification to support download delivery and streaming delivery to group users in LTE mobile networks. In 3GPP Release 8 specification, the EMBMS transmission is classified into single-cell transmission and MBSFN (Multicast Broadcast Single Frequency Network) transmission. In this paper, we propose a Scalable Video Coding (SVC) based video streaming scheme with dynamic adaptations and a scheduling scheme based on channel quality for unicast and multicast video transmissions. In our proposed unicast scheme, Channel Quality Indicator (CQI) feedbacks from User Equipment's (UE) are used for dynamic adaptations and scheduling. Cross layer signaling between Medium Access Control (MAC) and Real Time Transport (RTP) protocols is used to achieve the channel dependent adaptation for unicast in video server. Simulation results for unicast indicate improved video quality for more number of users with reduced bit rate video traffic. Approximately 13% video quality gain is observed for users at the cell edge using this adaptation scheme. We have also proposed a scheduling scheme for multicast over MBSFN networks. This scheme optimizes the radio spectrum allocation by adaptive modulation and coding (AMC) and frequency scheduling based on distribution of users in different channel quality regions. Through simulations we demonstrate that spectrum savings in the order of 72 to 82% is achievable in different user distribution scenarios with our proposed scheme.

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Section: Scenario C: Users Only In High Channel Quality Regionmentioning

confidence: 81%

Section: Multicast Adaptation Scheme For Mbsfnmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cross Layer Design for Efficient Video Streaming over LTE Using Scalable Video Coding

Radhakrishnan¹,

Tirouvengadam²,

Nayak³

2012

NPA

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“…A scalable video streaming system using SVC over mobile WIMAX networks is presented in [16] and [17]. A downlink bandwidth allocation scheme for SVC in WIMAX networks is proposed in [12]. The authors of [24] propose a combined scalability approach in which common temporal and quality scalability features can be used jointly with a partitioning of the image into Regions Of Interest (ROI).…”

Section: Related Workmentioning

confidence: 99%

H.264/AVC-to-SVC temporal video transcoder for video broadcasting in wireless networks

Garrido-Cantos

Cock

Martínez

et al. 2014

Multimed Tools Appl

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Over the last few decades multimedia usage has changed dramatically, with networks and terminals of diverse bandwidths and capabilities coexisting. To ensure a good quality of experience, this diverse environment requires adaptability of the video stream. If video streams were compressed using Scalable Video Coding (SVC) schemes, they would be able to adapt to these heterogeneous networks and a wide range of terminals. However, since the majority of multimedia contents are compressed using H.264/AVC, they cannot benefit from this scalability. This paper makes some proposals for improving a temporal H.264/AVC-to-SVC video transcoder so that it can convert an H.264/AVC bitstream without scalability to scalable bitstreams with temporal scalability. The idea behind the proposed transcoder is to accelerate interprediction, focusing on reducing the coding complexity of the mode decision and motion estimation tasks of the encoder stage by using information available after the H.264/AVC decoding stage. To accelerate the mode decision task, a decision tree for narrowing down the Macroblock (MB) types to be checked by the SVC encoder has been developed. On the other hand, to accelerate the motion estimation task, a reduced area is created dynamically for every MB and sub-MB. Moreover, time savings increase considerably when both proposals are adjusted to work together, as opposed to doing so in an isolated way. The results show that when our joint proposal is applied, the complexity is reduced by 98 % while maintaining coding efficiency

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“…It is based on the IEEE 802.16 standard discussed in [2][3][4][5]. With the ongoing deployment of different WiMAX technology all over the world, WiMAX is going through the evolution and adaptive processes in order to keep up other technologies.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of the WiMAX Network under a Complete Partitioned User Group with a Traffic Shaping Algorithm

Akhter¹,

Islam²,

Amin³

2014

Journal of Information Processing Systems

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Abstract-To enhance the utilization of the traffic channels of a network (instead of allocating radio channel to an individual user), a channel or a group of channels are allocated to a user group. The idea behind this is the statistical distribution of traffic arrival rates and the service time for an individual user or a group of users. In this paper, we derive the blocking probability and throughput of a subscriber station of Worldwide Interoperability for Microwave Access (WiMAX) by considering both the connection level and packet-level traffic under a complete partition scheme. The main contribution of the paper is to incorporate the traffic shaping scheme onto the incoming turbulent traffic. Hence, we have also analyzed the impact of the drain rate of the buffer on the blocking probability and throughput.

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Maximizing Downlink Bandwidth Allocation Method Based on SVC in Mobile WiMAX Networks for Generic Broadband Services

Cited by 7 publications

References 17 publications

Cross Layer Design for Efficient Video Streaming over LTE Using Scalable Video Coding

Cross Layer Design for Efficient Video Streaming over LTE Using Scalable Video Coding

H.264/AVC-to-SVC temporal video transcoder for video broadcasting in wireless networks

Performance Evaluation of the WiMAX Network under a Complete Partitioned User Group with a Traffic Shaping Algorithm

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