| Presentation | 2014-01-23 A Study on Downlink Inter-Cell Interference Cancellation from Macro-Cell to Small-Cell Suitable for Heterogeneous Networks Employing Cell Range Expansion Manabu MIKAMI, Masayuki MIYASHITA, Teruya FUJII, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, data traffic is explosively increasing in cellular mobile communication system due to the prevalence of smart phones. A heterogeneous network overlaid with small-cells (HetNet), in which small-cell base stations (BSs) with a low transmission power are placed at the hot spot area of a macro-cell base station with a high transmission power, has been receiving attention in order to deal with the increasing traffic. For HetNet, Cell Range Expansion (CRE), in which a bias value is used for the reference signal received power (RSRP) from small-cell BSs, has been investigated as a promising approach to offload the traffic into the small-cell from the macro-cell. However, User Equipments (UEs), located in the small-cell area expanded by CRE, suffers large inter-cell interference (ICI) from the macro-cell BSs for the case of co-channel HetNet in which the same carrier frequency is used between macro-cells and small-cells. Hence, it is required for co-channel HetNet to mitigate ICI. In order to improve the downlink user throughput characteristics for co-channel HetNet employing large CRE bias value, this report investigates a successive interference cancellation (SIC) technique of codeword level SIC. The codeword level SIC realizes a large ICI mitigation effect with the use of the channel-decoding result of interference signals. Simulation results confirm that small-cell UEs equipped with codeword level SIC effectively suppresses the ICI from the macro-cell BSs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | heterogeneous network / inter-cell interference / successive interference cancellation / channel docoding |
| Paper # | SIP2013-85,RCS2013-255 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2014/1/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Downlink Inter-Cell Interference Cancellation from Macro-Cell to Small-Cell Suitable for Heterogeneous Networks Employing Cell Range Expansion |
| Sub Title (in English) | |
| Keyword(1) | heterogeneous network |
| Keyword(2) | inter-cell interference |
| Keyword(3) | successive interference cancellation |
| Keyword(4) | channel docoding |
| 1st Author's Name | Manabu MIKAMI |
| 1st Author's Affiliation | Wireless Research Center, Softbank Mobile Corp.() |
| 2nd Author's Name | Masayuki MIYASHITA |
| 2nd Author's Affiliation | Wireless Research Center, Softbank Mobile Corp. |
| 3rd Author's Name | Teruya FUJII |
| 3rd Author's Affiliation | Wireless Research Center, Softbank Mobile Corp. |
| Date | 2014-01-23 |
| Paper # | SIP2013-85,RCS2013-255 |
| Volume (vol) | vol.113 |
| Number (no) | 386 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |