Name
Title | ||
|---|---|---|
A Codebook Based Simultaneous Beam Training for mmWave Multi-User MIMO Systems with Split Structures |
Abstract | ||
|---|---|---|
The tradeoff between narrow beams and low training overhead is deemed to a bottleneck for millimeter-wave (mmWave) systems. Particularly, in multi-user (MU) scenarios, the training overhead grows linearly with the number of users. To address this issue, this paper proposes a codebook based simultaneous beam training scheme for mmWave MU systems with split/partially- connected structures. In this scheme, the multi- resolution codebook based hierarchical beam searching is adopted to reduce the training overhead and acquire the angle of departure (AoD) for each user-group. Meanwhile, the concurrent beams, offered by the corresponding subarray-groups of split structures, enable simultaneous beam training for all served user- groups. Consequently, the overall training overhead is significantly reduced. Moreover, a two-phase training protocol is elegantly built, where the whole array is used to reap large array gain in the initial phase. Furthermore, in the subsequent parallel training phase, multiple subarray-groups conduct simultaneous beam training for the corresponding user-groups. Hence, advantages on both low training overhead and large array gain are achieved. Numerical results show the proposed scheme outperforms traditional counterparts, especially in moderate-high signal-to-noise ratio (SNR) regimes with limited transmission blocks. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/GLOCOM.2018.8648139 | 2018 IEEE Global Communications Conference (GLOBECOM) |
Keywords | Field | DocType |
Millimeter-wave (mmWave),multi-user,beam training,split/partially-connected structures,multi-resolution codebook | Bottleneck,Multi-user MIMO,Computer science,Angle of departure,Real-time computing,Beam (structure),Array gain,Computer engineering,Codebook | Conference |
ISSN | ISBN | Citations |
2334-0983 | 978-1-5386-4727-1 | 1 |
PageRank | References | Authors |
0.36 | 0 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Renmin Zhang | 1 | 1 | 0.70 |
| Hua Zhang | 2 | 12 | 7.68 |
| Wei Xu | 3 | 287 | 21.83 |
| Chunming Zhao | 4 | 671 | 64.30 |