Accession Number : ADP006884

Title :   Topology-Selective Jamming of Fully-Connected, Code-Division Random-Access Networks,

Corporate Author : UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES COMMUNICATIONS SCIENCES INST

Personal Author(s) : Polydoros, Andreas ; Cheng, Unjeng

Report Date : JUN 1991

Pagination or Media Count : 12

Abstract : The purpose of this paper is to introduce certain models of topology -selective stochastic jamming and examine its impact on a class of fully-connected, spread-spectrum, slotted ALOHA-type random-access networks. The theory covers dedicated as well as half-duplex units. The dominant role of the spatial duty-factor is established, and connections with the dual concept of time-selective jamming are discussed. The optimal choices of coding rate and link-access parameters (from the user's side) and the jamming spatial fraction are numerically established for DS and FH spreading.

Descriptors :   *RADIO JAMMING, *COMMUNICATION AND RADIO SYSTEMS, *NOISE(RADIO), ACCESS, CODING, IMPACT, JAMMING, MODELS, NETWORKS, RATES, SPREAD SPECTRUM, TIME, TOPOLOGY, RADIO LINKS, ELECTROMAGNETIC WAVE PROPAGATION, MILITARY APPLICATIONS, REPRINTS, SYMPOSIA.

Subject Categories : Radio Communications
      Radiofrequency Wave Propagation
      Radio Countermeasures

Distribution Statement : APPROVED FOR PUBLIC RELEASE