Sadayuki Abeta

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This paper proposes broadband packet wireless access employing Variable Spreading Factor-Orthogonal Frequency and Code Division Multiplexing (VSF-OFCDM) with two-dimensional spreading that prioritizes time domain spreading in the forward link and Multi-carrier/DS-CDMA (MC/DS-CDMA) in the reverse link for the system beyond IMT-2000. Based on the wireless(More)
This paper compares by computer simulation the achievable throughput performance employing fast packet scheduling algorithms focusing on the throughput of each user in High Speed Downlink Packet Access (HSDPA). Three packet scheduling algorithms are employed: the Maximum carrier-to-interference power ratio (CIR), Proportional Fairness (PF), and Round Robin(More)
This paper proposes broadband packet wireless access employing variable spreading factor-orthogonal frequency and code division multiplexing (VSF-OFCDM) in the forward link and multi-carrier(MC)/DS-CDMA in the reverse link for the system beyond IMT-2000. Based on wireless access schemes, we propose major radio air interface parameters in the physical layer(More)