Dynamic Scheduling for Scalable Media Transmission over cdma2000 1xEV-DO Broadcast and Multicast Networks

Kang, Kyungtae; Cho, Jinsung; Cho, Yongwoo; Shin, Hyundong

doi:10.1007/11422778_78

Cited by 7 publications

(2 citation statements)

References 9 publications

(6 reference statements)

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“…The BSC/PCF is responsible for signaling, establishing and terminating bearer channels between the PDSN and the mobile nodes. A detailed description of broadcast service procedure can be found elsewhere [1,2,8,9].…”

Section: The Cdma2000 1xev-do Broadcast Servicementioning

confidence: 99%

A Hybrid Error Recovery scheme for Scalable Video Transmission over 3G Cellular Broadcast Networks

2007

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The cdma2000 1xEV-DO mobile communication system provides broadcast and multicast services (BCMCS) to meet an increasing demand for multimedia data services. But the servicing of video streams over a BCMCS network faces a challenge from the unreliable and error-prone nature of the radio channel. BCMCS uses Reed-Solomon coding integrated with the MAC protocol for error recovery. We show that this is not effective for mobiles moving at the edge of service area, where the channel condition is bad, resulting in significantly lower video quality. To improve the playback quality of an MPEG-4 FGS (fine granularity scalability) video stream, we propose a hybrid error recovery scheme incorporating a packet scheduler, which uses slots saved by reducing the Reed-Solomon coding overhead. Packets to be retransmitted are prioritized by a utility function which reduces the packet error-rate in the application layer within a fixed retransmission budget by considering of the map of the error control block at each mobile node. Our error recovery scheme also uses the characteristics of MPEG-4 FGS to improve the video quality even for a slowmoving mobile which is experiencing a high error-rate in the physical channel because of error bursts.

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Section: The Cdma2000 1xev-do Broadcast Servicementioning

confidence: 99%

A Hybrid Error Recovery scheme for Scalable Video Transmission over 3G Cellular Broadcast Networks

2007

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“…The Third Generation Partnership Project-2 (3GPP2) has produced technical specifications for the cdma2000 highrate broadcast packet-data air interface [1] [2] which can support broadcast and multicast services (BCMCS) [3] [4] [5]. In designing a mobile phone device to support multimedia in a 3G broadcast environment, energy conservation is more critical than the performance of a particular application program, especially because the high-speed packet data services supported by third-generation systems are expected to consume more energy than conventional circuit-switched voice services.…”

Section: Introductionmentioning

confidence: 99%

Energy Characterization of Reed-Solomon Decoding in 3G Broadcasting

Ryu

Kang

Cho

et al. 2006

Proceedings. 2006 31st IEEE Conference on Local Computer Networks

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3GPP2 has recently introduced the Broadcast and Multicast Services (BCMCS) architecture for cdma2000 1xEV-DO wireless networks to enable service providers to broadcast multimedia content such as MPEG-4 video. For MAC-layer forward error correction the BCMCS scheme uses the ReedSolomon (RS) decoding process, which consumes a considerable amount of energy on mobile phones. To address this problem, we first characterize the energy consumption of the decoder with respect to its components: the data decoder, error locator and erasure decoder. Based on this detailed energy characterization we propose an analytic energy model which takes account of different levels of bit error rate in the forward traffic channel. This model is then verified experimentally on an ARM microprocessor-based testbed. Our results will help design energy-efficient BCMCS systems for 3G cellular networks.

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