Title :
Channel assignments in mobile radio systems using channel interleaving
Author_Institution :
Radio Commun. Syst. Lab., NTT, Yokosuka, Japan
Abstract :
Channel assignments in mobile radio systems which are constrained not only by cochannel interference but also by adjacent channel interference are examined, and the relationship between the minimal adjacent channel user distance and the increase in available channels by means of channel interleaving is clarified. The method described to obtain effective channel assignments deals with arbitrary interference conditions and clarifies the performance under various conditions, including cases in which the zone structure and antenna pattern are not homogeneous. This method is readily applicable to actual system planning, and should provide not only labor-saving for system design but also spectrum efficiency
Keywords :
frequency allocation; mobile radio systems; radiofrequency interference; adjacent channel interference; antenna pattern; channel assignments; channel interleaving; cochannel interference; minimal adjacent channel user distance; mobile radio systems; spectrum efficiency; zone structure; Bandwidth; Base stations; Channel spacing; Frequency; Interchannel interference; Interference constraints; Interleaved codes; Land mobile radio; Search methods; Symmetric matrices;
Conference_Titel :
Communications, 1988. ICC '88. Digital Technology - Spanning the Universe. Conference Record., IEEE International Conference on
Conference_Location :
Philadelphia, PA
DOI :
10.1109/ICC.1988.13666