Advanced SearchSearch Tips
Dynamic Power Management Method Considering VBR Video Traffic in Wi-Fi Direct
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Dynamic Power Management Method Considering VBR Video Traffic in Wi-Fi Direct
Jin, Mei-Hua; Jung, Ji-Young; Lee, Jung-Ryun;
  PDF(new window)
Recently Wi-Fi Alliance defined Wi-Fi direct, which can communicate through a direct connection between the mobile device anytime, anywhere. In Wi-Fi direct, all devices are categorized by group of owner (GO) and client. Since portability is emphasized in Wi-Fi direct devices, it is essential to control the energy consumption of a device very efficiently. In order to avoid unnecessary power consumed by GO, Wi-Fi direct standard defines two power management schemes: Opportunistic power saving scheme and Notice Of Absence (NOA) scheme. But, these two schemes do not consider the traffic pattern, so we cannot expect high energy efficiency. In this paper, we suggest an algorithm to enhance the energy efficiency of Wi-Fi direct power saving, considering the characteristics of multimedia video traffic. Proposed algorithm utilizes the statistical distribution for the size of video frames and adjusts the length of awake interval dynamically. Also, considering the inter-dependency among video frames, the proposed algorithm assigns priorities to video frames and ensures that a video frame with high priority is transmitted with higher probability than other frames with low priority. Simulation results shows that the proposed method outperforms the traditional NOA in terms with average delay and energy efficiency.
Wi-Fi direct;Dynamic power saving;VBR video traffic;
 Cited by
Cisco VNI Forecast, "Cisco visual networking index: Global mobile data traffic forecast update 2014-2019," Cisco Public Information, Feb. 2014.

J. M. Jeong and J. D. Kim, "Connection history based device identification algorithm for wireless peer-to-peer connection," in Proc. KICS Winter Conf. 2014, pp. 283-284, Gangwon-do, Korea, Jan. 2014.

E. S. Oh and S. H. Hwang, "Performance of SUN and WiFi P2P for M2M communication," J. KICS, vol. 38C, no. 09, pp. 740-745, Aug. 2013. crossref(new window)

M. C. Bech, Wi-fi Direct vs Bluetooth vs ZigBee, Retrieved May 14, 2014, from

Wi-Fi Alliance, Wi-Fi Peer-to-Peer (P2P) Technical Specification version, 1.1(2010), from

D. Camps-Mur, X. Perez-Costa, and S. Sallent-Ribes, "Designing energy efficient access points with Wi-Fi direct," Computer Netw., vol. 55, no. 13, pp. 2838-2855, May 2011. crossref(new window)

D. Camps-Mur, A. Garcia-Saavedra, and P. Serrano, "Device to device communications with Wi-Fi direct: Overview and experimentation," IEEE Wirel. Commun., vol. 20, no. 3, pp. 96-104, Jun. 2013. crossref(new window)

Y. Seo and Y. B. Ko, "Dynamic power management for energy efficient Wi-Fi direct," J. KICS, vol. 38B, no. 08, pp. 663-671, May 2013. crossref(new window)

H. S. Yoo, S. H. Kim, S. W. Lee, J. Y. Hwang, and D. K. Kim, "Traffic aware parameter tuning for Wi-Fi direct power saving," in Proc. ICUFN 2014, pp. 479-480, Shanghai, China, Jul. 2014.

K. W. Lim, W. S. Jung, H. Kim, J. Han, and Y. B. Ko, "Enhanced power management for Wi-Fi direct," 2013 IEEE WCNC, pp. 123-128, Shanghai, China, Apr. 2013.

M. F. Alam, M. Atiquzzaman, and M. A. Karim, "Traffic shaping for MPEG video transmission over the next generation internet," Computer Commun., vol. 23, pp. 1336-1348, Aug. 2000. crossref(new window)

H. H. Choi, H. G. Park, and J. R. Lee, "Vertical handover strategy for multi-layered real-time video traffics," IEICE Trans. Inf. and Syst., vol. E97-D, no. 10, pp. 2802-2805, Oct. 2014. crossref(new window)

G. S. Jung, K. W. Kang, and Q. Mulluhi, "Multithreaded distributed MPEG1 video delivery in the internet environment," in Proc. 2000 ACM Symp. Applied Computing, vol. 2, pp. 592-597, New york, USA, Mar. 2000.

Z. YongQiang, C. XinLin, and X. BingQun, "A new VBR model of MPEG streams on ATM network," in Proc. 1998 Int. Conf. Commun. Technol., vol. 2, pp. 1-6, Beijing, China, Oct. 1998.