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Delay-aware scheduling in heterogeneous multiuser systems

Shariatpanahi, P ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. DOI: 10.1109/SPAWC.2006.346382
  3. Publisher: 2006
  4. Abstract:
  5. Adaptive scheduling schemes which consider channel conditions are examples of cross-layer design in wireless networks. Research work which has been done on optimizing the performance of scheduling systems have shown that in each time slot it is better to transmit to the users with the best channel condition. In order to realize such schemes, most of earlier works have considered perfect feedback channels to send Channel State Information (CSI) to the scheduler. However, in practical systems there are some sources of imperfectness in feedback channels such as delay and quantization error. In this paper, we consider the effect of CSI delay on the performance of such systems. A new delay-aware scheduling scheme is proposed, which takes into account the difference in delay profiles of different users in the scheduling algorithm. Also a reduced complexity alternative scheme is investigated
  6. Keywords:
  7. Channel state information ; Computer systems ; Feedback ; Information retrieval ; Signal processing ; State feedback ; Telecommunication ; Telecommunication systems ; Theorem proving ; Wireless telecommunication systems ; Adaptive scheduling ; Channel conditions ; Channel-state information (CSI) ; Cross layer designs ; Delay profiles ; Feedback channels ; Multi user systems ; Practical systems ; Quantization errors ; Reduced-complexity ; Research works ; Scheduling schemes ; Scheduling systems ; Time slot (TS) ; Wireless (WiFi) communication ; Scheduling
  8. Source: 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC, Cannes, 2 July 2006 through 5 July 2006 ; 2006 ; 078039710X (ISBN); 9780780397101 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4153870