Name
Title | ||
|---|---|---|
MmWave Codebook Selection in Rapidly-Varying Channels via Multinomial Thompson Sampling |
Abstract | ||
|---|---|---|
ABSTRACTMillimeter-wave (mmWave) communications, using directional beams, is a key enabler for high-throughput mobile ad hoc networks. These directional beams are organized into multiple codebooks according to beam resolution, with each codebook consisting of a set of equal-width beams that cover the whole angular space. The code-book with narrow beams delivers high throughput, at the expense of scanning time. Therefore overall throughput maximization is achieved by selecting a mmWave codebook that balances between beamwidth (beamforming gain) and beam alignment overhead. Further, these codebooks have some potential natural structures such as the non-decreasing instantaneous rate or the unimodal throughput as one traverses from the codebook with wide beams to the one with narrow beams. We study the codebook selection problem through a multi-armed bandit (MAB) formulation in mmWave networks with rapidly-varying channels. We develop multiple novel Thompson Sampling-based algorithms for our setting given different codebook structures with theoretical guarantees on regret. We further collect real-world (60 GHz) measurements with 12-antenna phased arrays, and show the performance benefits of our approaches in an IEEE 802.11ad/ay emulation setting. |
Year | DOI | Venue |
|---|---|---|
2021 | 10.1145/3466772.3467044 | MOBIHOC |
DocType | Citations | PageRank |
Conference | 0 | 0.34 |
References | Authors | |
0 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yin Zhang | 1 | 3492 | 281.04 |
| S Basu | 2 | 0 | 0.34 |
| Sanjay Shakkottai | 3 | 1467 | 147.23 |
| Robert W. Heath | 4 | 14415 | 885.64 |