Title :
Optimal MIMO Antenna Geometry Analysis for Wireless Networks in Underground Tunnels
Author :
Sun, Zhi ; Akyildiz, Ian F.
Author_Institution :
Broadband Wireless Networking Lab. (BWN Lab.), Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
The MIMO (Multiple Input Multiple Output) systems can efficiently mitigate the severe multipath fading effects in underground tunnels. Due to the unique tunnel channel characteristics, there exist optimal antenna geometries that can maximize the MIMO channel capacity. In this paper, an optimal MIMO antenna geometry design scheme is developed based on the analysis of the channel capacity in underground tunnels. The MIMO channel capacities in both empty tunnels and tunnels with obstructions are analytically expressed to facilitate the antenna geometry design. Simulation results show that the MIMO system with designed antenna geometry has obvious improvements in channel capacity than the system with the traditional linear array antenna geometry.
Keywords :
MIMO communication; antenna theory; fading channels; linear antenna arrays; multipath channels; radio networks; tunnels; MIMO channel capacity; linear array antenna; multipath fading effects; optimal MIMO antenna geometry analysis; underground tunnel channel; wireless networks; Broadband antennas; Channel capacity; Fading; Geometry; Linear antenna arrays; MIMO; Road safety; Robustness; Throughput; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5426286
