Optimum Resource Block Bandwidth for Frequency Domain Channel-Dependent Scheduling in Evolved UTRA Downlink OFDM Radio Access

This paper presents the optimum resource block (RB) bandwidth for frequency and time domain channel-dependent scheduling based on system-level simulations in the downlink orthogonal frequency division multiplexing (OFDM) based radio access. The simulation results clarifies that the optimum RB bandwi...

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Bibliographic Details
Main Authors: Nagata, S., Ofuji, Y., Higuchi, K., Sawahashi, M.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive scheduling
Bandwidth
Delay effects
Diversity reception
Downlink
Frequency domain analysis
OFDM
Optimal control
Power system modeling
Programmable control
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Summary:This paper presents the optimum resource block (RB) bandwidth for frequency and time domain channel-dependent scheduling based on system-level simulations in the downlink orthogonal frequency division multiplexing (OFDM) based radio access. The simulation results clarifies that the optimum RB bandwidth is within the range of approximately 150 to 375 kHz assuming typical power delay profile models in a cellular system such as typical urban, pedestrian-B, and vehicular-A modes, from the viewpoint of the multiuser diversity effect gained in frequency domain channel-dependent scheduling. The results also show that considering the overhead loss by the control signaling bits for scheduling, adaptive modulation and coding and hybrid ARQ with packet combining, the optimal RB bandwidth is in the range of approximately 375 to 750 kHz
ISSN:1550-2252
DOI:10.1109/VETECS.2006.1682805