Title :
A2IR: an asynchronous and adaptive hybrid ARQ scheme for 3G evolution
Author :
Das, Amab ; Khan, Farooa ; Nanda, Sanjiv
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
Abstract :
An expanded effort is underway to support the evolution of the UMTS and cdma2000-1x standards to meet the rapidly developing needs associated with wireless Internet applications. The support of packet-switched high-speed data users is provided by means of a shared channel that can serve one packet data user at a time in a time-multiplexed manner. A number of performance enhancing technologies are proposed to ensure high peak and average packet data rates while supporting circuit switched voice and packet data on the same spectrum. These techniques include adaptive modulation and coding (AMC), hybrid ARQ (HARQ), fat-pipe scheduling, fast cell site selection (FCSS) and multiple input multiple output (MIMO) antenna techniques. In this paper, we provide description and simulation results for the asynchronous and adaptive HARQ scheme that is being considered for 3G evolution
Keywords :
Internet; MIMO systems; adaptive codes; adaptive modulation; antenna theory; automatic repeat request; cellular radio; circuit switching; packet radio networks; scheduling; telecommunication standards; time division multiplexing; 3G evolution; A2IR; AMC; FCSS; HARQ; MIMO antenna techniques; UMTS; adaptive modulation and coding; asynchronous adaptive HARQ scheme; asynchronous adaptive hybrid ARQ scheme; cdma2000-1x; circuit switched voice data; fast cell site selection; fat-pipe scheduling; hybrid ARQ; multiple input multiple output antenna techniques; packet data rates; packet data user; packet-switched high-speed data users; performance enhancing technologies; shared channel; time-multiplexing; wireless Internet applications; 3G mobile communication; Adaptive arrays; Automatic repeat request; Circuit simulation; Internet; MIMO; Modulation coding; Packet switching; Standards development; Switching circuits;
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.2001.944919
