Throughput improvement scheme in multi-code CDMA

Kim, I.M.; Shin, Byung Cheol; Kim, Y.J.; Kim, J.K.; Han, InSoo

doi:10.1049/el:19980659

Cited by 5 publications

(5 citation statements)

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“…Almost all resource management schemes present a BER threshold as a QoS criterion, and the BER value is, in general, the same for users with the same service class such as voice, data, and video [1]- [3]. In this paper, these schemes are referred to as the conventional scheme.…”

Section: The Conventional Resource Allocation Scheme For Video Tmentioning

confidence: 99%

“…For each video user, however, multiple subchannels should be used for additional traffics such as voice and signaling. Thus, we assume each video user occupies subchannels each of which is separated from the others by the multicode CDMA technique [2], [3], and each of the subchannels accommodates VBR traffic using VPG-CDMA. After allocating capacities to video and voice users, residual capacity is consumed by data users.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…In third-generation communication systems, however, a wide variety of multimedia services, such as video as well as voice and data, must be supported. For this, some advanced resource allocation schemes have been proposed to accommodate variable bit rate (VBR) image services [1]- [3]. These schemes, however, have some limitations.…”

Section: Introductionmentioning

confidence: 99%

“…These schemes, however, have some limitations. First, they were designed and analyzed with simplified traffic models such as Poisson process or Markov chain [3]- [6]. However, the real VBR traffic generated by H.261, H.263, and MPEG has more complex traffic characteristics [7].…”

Section: Introductionmentioning

confidence: 99%

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A new resource allocation scheme based on a PSNR criterion for wireless video transmission to stationary receivers over Gaussian channels

Kim

2002

IEEE Trans. Wireless Commun.

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A new resource allocation scheme is proposed for video service over a Gaussian channel. For video quality rating, we introduce a suitable metric: the average peak signal-to-noise ratio (PSNR) or the average channel-induced PSNR degradation. Then, we model the end-to-end distortion considering the error propagation effect caused by motion compensation. On the basis of this model, we propose an efficient resource allocation scheme for real video service. Unlike conventional schemes, the new scheme satisfies the PSNR requirement of each video user by adjusting the bit-error rate level with the changes of image characteristics. Simulation results show that the proposed scheme utilizes the bandwidth more efficiently than conventional schemes.Index Terms-Bit-error rate, distortion, H.263, peak signal-tonoise ratio, resource allocation, variable bit rate, wireless video.

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Section: The Conventional Resource Allocation Scheme For Video Tmentioning

confidence: 99%

Section: Performance Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new resource allocation scheme based on a PSNR criterion for wireless video transmission to stationary receivers over Gaussian channels

Kim

2002

IEEE Trans. Wireless Commun.

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“…A new system named MC-MC-CDMA have been suggested for future generation system ; This system makes use advantages of multi code-CDMA technical [1]- [3] and multi carrier modulation with multiple access schema MC-CDMA [4]- [8].…”

Section: Introductionmentioning

confidence: 99%