Abstract

Energy minimization is an important design goal in wireless video transmission. We examine how the RF energy and the analog circuit energy, which account for a large part of the energy consumption for wireless video transmission, can be controlled with physical-layer parameters (e.g., modulation level, bit rate, bit error rate, and multiple access interference) and link-layer specifications (e.g., the buffer status, idle time, and active time). Building on these insights, we develop three energy-efficient video transmission schemes for the single-user system, i.e., frame-by-frame transmission, group of pictures (GOP)-by-GOP transmission, and client-buffer-related energy-efficient video transmission (CBEVT). Our simulations indicate that energy savings of up to 85% is achievable in the radio frequency (RF) front end using the CBEVT algorithm. We also present an energy-efficient optimal smoothing algorithm for reducing the RF front-end energy consumption and the peak data rate. For CDMA-based multiuser systems, we propose an RF front-end energy model that assumes perfect power control. We find the signal-to-interference-noise ratio (SINR) for the entire system that minimizes the total energy consumption. We propose the multiuser-based energy-efficient video transmission (MBEVT) algorithm, which can achieve energy savings of up to 38% for a six-user CDMA system with an independent 16-MB buffer for every uplink.

Original languageEnglish (US)
Pages (from-to)1229-1244
Number of pages16
JournalIEEE Transactions on Vehicular Technology
Volume58
Issue number3
DOIs
StatePublished - 2009

Fingerprint

Energy Efficient
Telecommunication links
Buffer
Energy Consumption
Energy utilization
Code Division multiple Access
Energy Saving
Code division multiple access
Energy conservation
Multiple Access Interference
Smoothing Algorithm
Analog Circuits
Multiple access interference
Energy Minimization
Energy Model
Analog circuits
Power Control
Uplink
Energy
Optimal Algorithm

Keywords

  • Energy efficiency
  • Radio frequency (RF) front end
  • Wireless video

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Aerospace Engineering
  • Automotive Engineering
  • Computer Networks and Communications
  • Applied Mathematics

Cite this

Energy-efficient video transmission over a wireless link. / Li, Ye; Reisslein, Martin; Chakrabarti, Chaitali.

In: IEEE Transactions on Vehicular Technology, Vol. 58, No. 3, 2009, p. 1229-1244.

Research output: Contribution to journalArticle

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