Title :
Channel allocation tiering (CHAT): taking GSM/EDGE networks beyond one-reuse
Author :
Craig, Stephen ; Berg, Magnus ; Broström, Andreas ; Kronestedt, Fredric ; Olsson, Magnus ; Schramm, Peter
Author_Institution :
Ericsson Radio Syst. AB, Stockholm, Sweden
Abstract :
A number of techniques to enhance the spectral efficiency of GSM/EDGE networks are currently being developed to meet the rapid growth in the use of mobile communications. Adoption of such features could render even one-reuse configurations blocking limited. To allow future networks to maximize spectral efficiency by remaining interference limited, the channel allocation tiering (CHAT) concept has been devised. With CHAT, methods to create and manage intracell interference are introduced. The CHAT concept is presented and its components evaluated by means of link and system simulations. Introduction of a CHAT configuration in a simulated GSM full-rate speech network is shown to lead to a 4-fold increase in downlink capacity and the effects of intracell interference are strongly mitigated
Keywords :
cellular radio; channel allocation; channel capacity; cochannel interference; interference suppression; CHAT; GSM/EDGE networks; channel allocation tiering; downlink capacity; full-rate speech network; interference mitigation; intracell interference; link simulation; mobile communications; spectral efficiency; system simulation; Adaptive arrays; Channel allocation; Diversity reception; Downlink; GSM; Interference suppression; Mobile communication; Multiaccess communication; Resource management; Speech;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944102
