DocumentCode :
2735663
Title :
Multi-spot diversity using OFDM for 60 GHz indoor wireless LAN
Author :
Kobayashi, Masato ; Arita, Takaya ; Udagawa, T. ; Nakagawa, Masaki
Author_Institution :
Dept. of Electr. Eng., Keio Univ., Yokohama
fYear :
1999
fDate :
1999
Firstpage :
476
Lastpage :
480
Abstract :
To realize high data rate wireless communication systems, much attention is being paid to millimeter-wave frequencies due to large bandwidth availability and cell planning flexibility. A directive antenna at the terminal side has been considered efficient both to suppress multipath delay and to compensate large path loss. However when the direct path is blocked by obstructions such as human bodies, the performance will be degraded seriously with a directive antenna. In the 60 GHz band, this shadowing problem has been considered as a severe problem to overcome. Therefore, multi-spot diversity is suggested as anti-shadowing scheme. In multi-spot diversity, multiple base stations (BS) transmit an identical information using an identical carrier frequency and a remote terminal (RT) composes the signals from multiple BS with OFDM modulation. This system realized by OFDM can be considered as a single frequency network (SFN) applied for indoor communications. We analyze theoretically the BER performance as a function of RT position using a simple three-dimensional ray tracing model with up to two reflections in an empty hypothetical room. We show the validity of the proposed system with multiple BS compared to that with a single BS
Keywords :
OFDM modulation; data communication; diversity reception; electromagnetic wave reflection; error statistics; ray tracing; wireless LAN; 60 GHz; BER performance; OFDM modulation; anti-shadowing scheme; cell planning flexibility; data rate; identical carrier frequency; indoor wireless LAN; millimeter-wave frequencies; multi-spot diversity; multiple base stations; path loss; reflections; remote terminal; single frequency network; three-dimensional ray tracing model; wireless communication systems; Availability; Bandwidth; Degradation; Delay; Directive antennas; Humans; Millimeter wave communication; OFDM; Wireless LAN; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal Wireless Communication, 1999 IEEE International Conference on
Conference_Location :
Jaipur
Print_ISBN :
0-7803-4912-1
Type :
conf
DOI :
10.1109/ICPWC.1999.759690
Filename :
759690
Link To Document :
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