| Presentation | 2006-08-31 Design of Pilot Channels for TDM-Based MBMS in OFDM Based Evolved UTRA Downlink Akihito Morimoto, Naoto Ohkubo, Yoshihisa Kishiyama, Kenichi Higuchi, Mamoru Sawahashi, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper investigates the optimum pilot channel structures for time division multiplexing (TDM) based Multimedia Broadcast Multicast Service (MBMS) in the OFDM based Evolved UTRA downlink. We first explain the necessity for a L1/L2 control channel in the same sub-frame, in which the MBMS channel is multiplexed. Then, simulation results show that a cell-specific scrambled pilot channel with the spacing of every six sub-carriers is sufficient from the viewpoint of the packet error rate (PER) of the L1/L2 control information. Moreover, it is shown that the cell-common scrambled pilot channel is more appropriate to the MBMS channel because it achieves better PER performance than the cell-specific scrambled pilot channel with repetition pilot symbols, particularly in a high mobility environment. We also show that CDD (Cyclic Delay Diversity) achieves better PER performance than STBC (Space-Time Block Code) for the MBMS channel and that the cell-common scrambled pilot channel structure with two symbols in the time domain, a three sub-carrier spacing in the frequency domain (the resultant pilot overhead of 11.1%) is the most promising cell-common scrambled pilot channel structure for MBMS. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Evolved UTRA / OFDM / MBMS / pilot channel / soft-combining |
| Paper # | RCS2006-114 |
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| Committee | RCS |
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| Conference Date | 2006/8/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of Pilot Channels for TDM-Based MBMS in OFDM Based Evolved UTRA Downlink |
| Sub Title (in English) | |
| Keyword(1) | Evolved UTRA |
| Keyword(2) | OFDM |
| Keyword(3) | MBMS |
| Keyword(4) | pilot channel |
| Keyword(5) | soft-combining |
| 1st Author's Name | Akihito Morimoto |
| 1st Author's Affiliation | Radio Access Network Development Department, NTT DoCoMo, Inc.() |
| 2nd Author's Name | Naoto Ohkubo |
| 2nd Author's Affiliation | Radio Access Network Development Department, NTT DoCoMo, Inc. |
| 3rd Author's Name | Yoshihisa Kishiyama |
| 3rd Author's Affiliation | Radio Access Network Development Department, NTT DoCoMo, Inc. |
| 4th Author's Name | Kenichi Higuchi |
| 4th Author's Affiliation | Radio Access Network Development Department, NTT DoCoMo, Inc. |
| 5th Author's Name | Mamoru Sawahashi |
| 5th Author's Affiliation | Department of Electronics and Communication Engineering, Musashi Institute of Technology |
| Date | 2006-08-31 |
| Paper # | RCS2006-114 |
| Volume (vol) | vol.106 |
| Number (no) | 223 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |