Chapter

Personal Wireless Communications

Volume 3260 of the series Lecture Notes in Computer Science pp 69-78

Erlang Capacity Analysis of Multi-access Systems Supporting Voice and Data Services

  • Insoo KooAffiliated withDept. of Infor. and Comm., Gwang-Ju Institute of Science and Technology
  • , Anders FuruskarAffiliated withRadio Communication Systems, KISTA
  • , Jens ZanderAffiliated withRadio Communication Systems, KISTA
  • , Kiseon KimAffiliated withDept. of Infor. and Comm., Gwang-Ju Institute of Science and Technology

Abstract

In this paper, we analyze and compare the Erlang capacity of multi-access systems supporting several different radio access technologies according to two different operation methods: separate and common operation methods. In the common operation, any terminal can connect to any sub-system while each terminal in the separate operation only can connect to its designated sub-system. In a numerical example with GSM/EDGE-like and WCDMA-like sub-systems, it is shown that we can get up to 60% Erlang capacity improvement through the common operation method when using a near optimum so-called service-based user assignment scheme. Even with the worst-case assignment scheme, we can still get about 15% capacity improvement over the separate operation method.