Performance analysis of slotted nonpersistent CSMA with an adaptive array and canceling signal

Tsugunao Kobayashi, Akira Sugihara, Kei Enomoto, Iwao Sasase

Research output: Contribution to journalArticle

Abstract

Slotted nonpersistent CSMA with an adaptive array is known to obtain high throughput when a number of terminals transmit data packets to a base station over a common radio channel. However, in this scheme, the terminals cannot begin to use a channel while the interfering packets are transmitted, even if the transmission of the acquired packet is complete. This causes throughput degradation. In this paper, we propose a slotted nonpersistent CSMA with an adaptive array and canceling signals to improve throughput performance. In the proposed model, the base station transmits a canceling signal to the terminals at the end of the transmission period of the acquired packet or at the time a failure occurs. The terminals cancel transmitting packets as soon as the terminals receive the canceling signal. We evaluate the throughput S and the average number of transmissions and schedulings G/S by theoretical analysis and computer simulation. It is shown that the proposed model attains higher S and smaller G/S than the conventional slotted nonpersistent CSMA with an adaptive array.

Original languageEnglish
Pages (from-to)60-69
Number of pages10
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume81
Issue number10
Publication statusPublished - 1998 Oct

Fingerprint

Carrier sense multiple access
Throughput
Base stations
Scheduling
Degradation
Computer simulation

Keywords

  • Adaptive array
  • Average number of transmissions and schedulings
  • Canceling signal
  • Slotted nonpersistent CSMA
  • Throughput

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

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abstract = "Slotted nonpersistent CSMA with an adaptive array is known to obtain high throughput when a number of terminals transmit data packets to a base station over a common radio channel. However, in this scheme, the terminals cannot begin to use a channel while the interfering packets are transmitted, even if the transmission of the acquired packet is complete. This causes throughput degradation. In this paper, we propose a slotted nonpersistent CSMA with an adaptive array and canceling signals to improve throughput performance. In the proposed model, the base station transmits a canceling signal to the terminals at the end of the transmission period of the acquired packet or at the time a failure occurs. The terminals cancel transmitting packets as soon as the terminals receive the canceling signal. We evaluate the throughput S and the average number of transmissions and schedulings G/S by theoretical analysis and computer simulation. It is shown that the proposed model attains higher S and smaller G/S than the conventional slotted nonpersistent CSMA with an adaptive array.",
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N2 - Slotted nonpersistent CSMA with an adaptive array is known to obtain high throughput when a number of terminals transmit data packets to a base station over a common radio channel. However, in this scheme, the terminals cannot begin to use a channel while the interfering packets are transmitted, even if the transmission of the acquired packet is complete. This causes throughput degradation. In this paper, we propose a slotted nonpersistent CSMA with an adaptive array and canceling signals to improve throughput performance. In the proposed model, the base station transmits a canceling signal to the terminals at the end of the transmission period of the acquired packet or at the time a failure occurs. The terminals cancel transmitting packets as soon as the terminals receive the canceling signal. We evaluate the throughput S and the average number of transmissions and schedulings G/S by theoretical analysis and computer simulation. It is shown that the proposed model attains higher S and smaller G/S than the conventional slotted nonpersistent CSMA with an adaptive array.

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