| Paper Abstract and Keywords |
| Presentation |
2004-11-19 09:40
Investigation of STBC and TSTD Transmitter Diversity Effect Considering Frequency and Time Diversity in OFCDM Broadband Packet Wireless Access
KwanWoong Ryu (YeungNam Univ.), Yoshihisa Kishiyama, Hiroyuki Atarashi, Mamoru Sawahashi (NTT DoCoMo), Yongwan Park (YeungNam Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper investigates the effects of the Space-Time Block Code (STBC) transmitter diversity and Time Switched Transmitter Diversity (TSTD) schemes while simultaneously considering the time diversity effect derived from hybrid automatic repeat request (ARQ) with packet combining and the frequency diversity effect for forward link Spread Orthogonal Frequency Division Multiplexing (OFDM) packet wireless access in a broadband multipath fading channel. Simulation results show that when the frequency diversity gain in Spread OFDM through frequency-domain spreading and channel coding plus interleaving in the frequency domain and the time diversity gain through hybrid ARQ are obtained, the additional transmitter diversity gain through STBC becomes very small, due to the decreasing pilot signal energy per transmitter branch. The results also show that TSTD, which simply switches the transmission branch alternately, improves the required average received signal energy per symbol-to-noise power spectrum density ratio by approximately 1.0 and 0.5 dB compared to one-branch transmission, when the maximum number of retransmissions in hybrid ARQ is three, without and with antenna diversity reception, respectively, in a 12-path Rayleigh fading channel with the root mean squared delay spread of 0.3 msec and maximum Doppler frequency of 20 Hz. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Spread OFDM / STBC / TSTD / frequency diversity / time diversity / hybrid ARQ / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 440, RCS2004-226, pp. 19-24, Nov. 2004. |
| Paper # |
RCS2004-226 |
| Date of Issue |
2004-11-12 (RCS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
RCS |
| Conference Date |
2004-11-18 - 2004-11-19 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Hotel Village, Kusatsu |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
RCS |
| Conference Code |
2004-11-RCS |
| Language |
English |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Investigation of STBC and TSTD Transmitter Diversity Effect Considering Frequency and Time Diversity in OFCDM Broadband Packet Wireless Access |
| Sub Title (in English) |
|
| Keyword(1) |
Spread OFDM |
| Keyword(2) |
STBC |
| Keyword(3) |
TSTD |
| Keyword(4) |
frequency diversity |
| Keyword(5) |
time diversity |
| Keyword(6) |
hybrid ARQ |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
KwanWoong Ryu |
| 1st Author's Affiliation |
YeungNam University (YeungNam Univ.) |
| 2nd Author's Name |
Yoshihisa Kishiyama |
| 2nd Author's Affiliation |
NTT DoCoMo (NTT DoCoMo) |
| 3rd Author's Name |
Hiroyuki Atarashi |
| 3rd Author's Affiliation |
NTT DoCoMo (NTT DoCoMo) |
| 4th Author's Name |
Mamoru Sawahashi |
| 4th Author's Affiliation |
NTT DoCoMo (NTT DoCoMo) |
| 5th Author's Name |
Yongwan Park |
| 5th Author's Affiliation |
YeungNam University (YeungNam Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2004-11-19 09:40:00 |
| Presentation Time |
20 minutes |
| Registration for |
RCS |
| Paper # |
RCS2004-226 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.440 |
| Page |
pp.19-24 |
| #Pages |
6 |
| Date of Issue |
2004-11-12 (RCS) |
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