Packet Scheduling Algorithm Considering a Minimum Bit Rate for Non-realtime Traffic in an OFDMA/FDD-Based Mobile Internet Access System

  • Kim, Dong-Hoi (Mobile Telecommunication Research Division, ETRI) ;
  • Ryu, Byung-Han (Mobile Telecommunication Research Division, ETRI) ;
  • Kang, Chung-Gu (College of Information & Communications, Korea University)
  • Received : 2003.03.31
  • Published : 2004.02.29

Abstract

In this letter, we consider a new packet scheduling algorithm for an orthogonal frequency division multiplexing access/frequency division duplex (OFDMA/FDD)-based system, e.g., mobile broadband wireless access or high-speed portable internet systems, in which the radio resources of both time and frequency slots are dynamically shared by all users under a proper scheduling policy. Our design objective is to increase the number of non-realtime service (e.g., WWW) users that can be supported in the system, especially when the minimum bit rate requirement is imposed on them. The simulation results show that our proposed algorithm can provide a significant improvement in the average outage probability performance for the NRT service, i.e., significantly increasing the number of NRT users without much compromising of the cell throughput.

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References

  1. ETRI J. v.25 no.4 Linear Diversity Analysis for M-ary Square Quadrature Amplitude Modulation over Nakagami Fading Channels Yoon, D.;Chang, D.I.;Kim, N.S.;Woo, H.S.
  2. VTC 2000-Spring v.3 Data Throughput of CDMA-HDR a High Efficiency-High Data Rate Personal Comm. Wireless System Jalali, A.;Padovani, R.;Pankaj, R.
  3. IEEE Comm. Mag. v.39 no.Feb. Providing Quality of Service over a Shared Wireless Link Andrews, Matthew;Kumaran, Krishnan;Ramanan, Kavita;Stolyar, Alexander;Whiting, Phil
  4. Feasibility Study for OFDM for UTRAN Enhancement (Release 6), 3G TR25.892 V0.2.0 3GPP
  5. IEEE Trans. Wireless Comm. Cross-Layer Combining of Adaptive Modulation and Coding with Truncated ARQ over Wireless Links Liu, Qingwen;Zhou, Shengli;Giannakis, Georgios B.
  6. The UMTS Network and Radio Access Technology Castro, J.P.
  7. Physical Layer Aspects of UTRA High Speed Downlink Packet Access (Release 2000), 3G TR25.848 V4.0.0 3GPP