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Packet Access for Cellular Systems: The Capacity of S-Aloha and CDPA with Slow Shadowing

  • Michele Zorzi
  • Flaminio Borgonovo
  • Luigi Fratta
Part of the The Kluwer International Series in Engineering and Computer Science book series (SECS, volume 366)

Abstract

The paper discusses the features and compares the performance of two packet oriented channel-access schemes that appear particularly suitable for the PCN cellular environment. These schemes exploit the packet capture and can deal with inter-cell interference without any a priori bandwidth-consuming techniques such as those used in FDMA and CDMA. The first scheme is the well known S-ALOHA, whereas the second one is the Capture Division Packetized Access, recently proposed. The analytical model accounts for several features of real-world systems, e.g., the exact traffic pattern that must be offered in order to achieve throughput fairness, the exact interference caused by the traffic in the same cell and in other cells, the fading, the slow shadowing attenuation and some means to counteract it, such as best base station selection and power control. We also discuss the effects of outage, i.e., a mechanism which prevents a user from attempting more than a predetermined number of transmissions of the same packet.

Keywords

Power Control Outage Probability Transmission Attempt Slot Aloha Cochannel Interference 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers, Boston 1996

Authors and Affiliations

  • Michele Zorzi
    • 1
    • 2
  • Flaminio Borgonovo
    • 1
  • Luigi Fratta
    • 1
  1. 1.DEIPolitecnico di MilanoMilanoItaly
  2. 2.Center for Wireless CommunicationsUC San DiegoLa JollaUSA

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