ADAPTIVE SCHEDULING FOR HETEROGENEOUS TRAFFIC FLOWS IN CELLULAR WIRELESS OFDM-FDMA SYSTEMS

作者: S. VALENTIN , H. KARL , J. GROSS , A. WOLISZ

DOI: 10.1142/9781860947315_0055

关键词:

摘要: In this paper we study the performance gain achieved by introducing dynamic subcarrier scheduling schemes to OFDM systems in presence of heterogeneous traffic streams. Dynamic copes with channel state variation dynamically assigning different subcarriers terminals, e.g. downlink a cellular system. addition variations, also arrival data is highly variable for most applications. This calls that exploit both sources variation. homogeneous scenario, combination semantic queueing mechanisms can significantly increase capacity an cell. however, these do not simply carry over. Therefore, work first flows purely switching from static and then introduce management scheme improves further sacrificing transmission semantically unimportant video packets important related HTTP.

参考文章(8)
Adam Wolisz, Holger Karl, Frank H. P. Fitzek, James Gross, Comparison of heuristic and optimal subcarrier assignment algorithms international conference on wireless networks. pp. 249- 255 ,(2003)
Sanjay Shakkottai, Alexander L. Stolyar, Scheduling algorithms for a mixture of real-time and non-real-time data in HDR Teletraffic Science and Engineering. ,vol. 4, pp. 793- 804 ,(2001) , 10.1016/S1388-3437(01)80170-0
Quality of Future Internet Services Springer Berlin Heidelberg. ,(2000) , 10.1007/3-540-39939-9
J Gross, J Klaue, H Karl, A Wolisz, Cross-layer optimization of OFDM transmission systems for MPEG-4 video streaming Computer Communications. ,vol. 27, pp. 1044- 1055 ,(2004) , 10.1016/J.COMCOM.2004.01.010
Tho Le-Ngoc, N. Damji, Yang Xu, Dynamic resource allocation for multimedia services over OFDM downlink in cellular systems vehicular technology conference. ,vol. 4, pp. 1864- 1868 ,(2004) , 10.1109/VETECS.2004.1390596
P. Bhagwat, P. Bhattacharya, A. Krishna, S.K. Tripathi, Enhancing throughput over wireless LANs using channel state dependent packet scheduling international conference on computer communications. ,vol. 3, pp. 1133- 1140 ,(1996) , 10.1109/INFCOM.1996.493057
M. Hemy, P. Steenkiste, T. Gross, Evaluation of adaptive filtering of MPEG system streams in IP networks international conference on multimedia and expo. ,vol. 3, pp. 1313- 1317 ,(2000) , 10.1109/ICME.2000.871008
C. Fraleigh, S. Moon, B. Lyles, C. Cotton, M. Khan, D. Moll, R. Rockell, T. Seely, C. Diot, Packet-level traffic measurements from the Sprint IP backbone IEEE Network. ,vol. 17, pp. 6- 16 ,(2003) , 10.1109/MNET.2003.1248656