Name
Title | ||
|---|---|---|
Retrospective Interference Alignment for the Two-Cell MIMO Interfering Multiple Access Channel |
Abstract | ||
|---|---|---|
In this paper, we propose a new retrospective interference alignment for two-cell multiple-input multiple-output (MIMO) interfering multiple access channels (IMAC) with M receive antennas per base station (BS) and K users per cell each with N transmit antennas. The key idea of the retrospective IA lies in interference-purification during phase 1 and 2, and interference-repetition during phase 3. On the basis of the proposed method, we show that the achievable sum degrees of freedom (sum-DoF) is equal to 2M( ??? 2M N ??? + 1)= ( 2 ??? 2M N ??? + 1 ) if K M < NK and minf2KN;Mg if NK M with completely delayed channel state information at the transmitters (CSIT). It is shown that having delayed CSIT can strictly increase the sum- DoF compared to the case with no CSIT for cellular networks, especially for uplink scenarios. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TWC.2015.2415474 | Wireless Communications, IEEE Transactions |
Keywords | Field | DocType |
retrospective interference alignment,delayed channel state information at the transmitters (delayed csit).,cellular networks,mimo,interference,transmitters,vectors,wireless communication | Combinatorics,Multi-user MIMO,Telecommunications,MIMO,Computer network,Co-channel interference,Communication channel,Interference (wave propagation),Cellular network,Mathematics,Channel state information,Telecommunications link | Journal |
Volume | Issue | ISSN |
PP | 99 | 1536-1276 |
Citations | PageRank | References |
3 | 0.41 | 23 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wonjae Shin | 1 | 72 | 8.16 |
| Jungwoo Lee | 2 | 1467 | 156.34 |