TY - GEN
T1 - Throughput analysis of DS-CDMA wireless packet access using frequency-domain equalization and random TPC
AU - Ito, Haruki
AU - Kudoh, Eisuke
AU - Wang, Zhisen
AU - Adachi, Fumiyuki
PY - 2008
Y1 - 2008
N2 - Recently, we proposed a random transmit power control (TPC) to increase the uplink capacity of DS-CDMA wireless packet access using Rake combining. Furthermore, we evaluated the combined effect of random TPC and inter-path interference (IPI) cancellation and showed that a significant throughput improvement can be achieved if the IPI is sufficiently suppressed. Frequency-domain equalization (FDE) is a promising technique to suppress the IPI. In this paper, we derive an expression for the received signal-to-interference plus noise power ratio (SINR) for a DS-CDMA wireless packet access using FDE and random TPC. Using the derived SINR expression, we evaluate its throughput performance by numerical computation. We compare the throughput using Rake combining with that using FDE to discuss the IPI suppression effect of FDE. It is shown that the throughput using MMSE-FDE approaches that achievable using rake combining w/perfect IC.
AB - Recently, we proposed a random transmit power control (TPC) to increase the uplink capacity of DS-CDMA wireless packet access using Rake combining. Furthermore, we evaluated the combined effect of random TPC and inter-path interference (IPI) cancellation and showed that a significant throughput improvement can be achieved if the IPI is sufficiently suppressed. Frequency-domain equalization (FDE) is a promising technique to suppress the IPI. In this paper, we derive an expression for the received signal-to-interference plus noise power ratio (SINR) for a DS-CDMA wireless packet access using FDE and random TPC. Using the derived SINR expression, we evaluate its throughput performance by numerical computation. We compare the throughput using Rake combining with that using FDE to discuss the IPI suppression effect of FDE. It is shown that the throughput using MMSE-FDE approaches that achievable using rake combining w/perfect IC.
KW - Capture effect
KW - Component; wireless packet access
KW - DS-CDMA
KW - Frequency-domain equalization
KW - IPI cancellation
KW - Transmit power control
UR - http://www.scopus.com/inward/record.url?scp=58149128942&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=58149128942&partnerID=8YFLogxK
U2 - 10.1109/VETECF.2008.399
DO - 10.1109/VETECF.2008.399
M3 - Conference contribution
AN - SCOPUS:58149128942
SN - 9781424417223
T3 - IEEE Vehicular Technology Conference
BT - The 68th IEEE Vehicular Technology Conference, VTC 2008-Fall
T2 - 68th Semi-Annual IEEE Vehicular Technology, VTC 2008-Fall, Conference
Y2 - 21 September 2008 through 24 September 2008
ER -