On the performance of an indicator-based stall avoidance mechanism for high-speed downlink packet access systems

Li Chun Wang, Chih-Wen Chang, Chung Ju Chang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The stall of delivering medium access control (MAC) layer data to the upper layer is a serious problem when a negative acknowledgement (NACK) control signal becomes an acknowledgement (ACK) signal, especially for a high-speed mobile terminal during handoff. Stall avoidance mechanisms aim to reduce such the transmission delay and keep in-sequence delivery of the MAC layer data to the upper layer. Recently, for providing high-speed downlink packet access (HSDPA) in the wideband code-division multiple access system, an indicator-based stall avoidance (ISA) mechanism was proposed to remove the nonrecoverable gap in the received out-of-sequence packets. In this paper, we derive the closed-form expression for the gap-processing time of the ISA mechanism when applying the multiprocess stop-and-wait (SAW) hybrid automatic repeat request (HARQ) mechanism. The derived analytical formulas can be used to understand performance tradeoffs between the gap-processing time and throughput in terms of various numbers of users and parallel processes when implementing the multiprocess SAW HARQ mechanism in the HSDPA system.

Original languageEnglish
Pages (from-to)691-703
Number of pages13
JournalIEEE Transactions on Vehicular Technology
Volume55
Issue number2
DOIs
Publication statusPublished - 2006 Mar 1

Fingerprint

High Speed
Medium access control
Medium Access Control
Processing
Code division multiple access
Throughput
Handoff
Signal Control
Code Division multiple Access
Closed-form
Trade-offs

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Aerospace Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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On the performance of an indicator-based stall avoidance mechanism for high-speed downlink packet access systems. / Wang, Li Chun; Chang, Chih-Wen; Chang, Chung Ju.

In: IEEE Transactions on Vehicular Technology, Vol. 55, No. 2, 01.03.2006, p. 691-703.

Research output: Contribution to journalArticle

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