Title :
MIMO techniques and full frequency reuse in mobile WiMAX systems
Author :
Sari, Hikmet ; Sezginer, Serdar
Author_Institution :
Sequans Commun., Paris, France
Abstract :
We first review recent developments in multiple-input multiple-output (MIMO) techniques for mobile WiMAX systems and discuss full-rate and high-rate space-time codes of low decoder complexity. Next, we discuss the frequency reuse issue in sectored cells and point out the limitations due to overlapping of antenna radiation patterns of adjacent sectors and the resulting interference. Then, we discuss several frequency reuse concepts for the uplink and for the downlink. Some of these techniques are half rate, while others are full rate, both of them providing transmit diversity.
Keywords :
MIMO communication; WiMax; antenna radiation patterns; decoding; frequency allocation; interference (signal); mobile radio; space-time codes; MIMO techniques; antenna radiation patterns; decoder complexity; full frequency reuse; interference; mobile WiMAX systems; multiple- input multiple-output techniques; space-time codes; Constellation diagram; Decoding; Diversity reception; Frequency; MIMO; Receiving antennas; Slot antennas; Transmitting antennas; WiMAX; Wireless communication; MIMO; WiMAX; cell sectoring; frequency reuse;
Conference_Titel :
Telecommunications, 2009. ICT '09. International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-2936-3
Electronic_ISBN :
978-1-4244-2937-0
DOI :
10.1109/ICTEL.2009.5158610
