Name
Abstract | ||
|---|---|---|
Millimeter-wave (mmWave) systems use highly directional beams with narrow beamwidths to overcome the high path loss associated with their frequency bands. The use of narrow beams complicates the link establishment process as the transmitter and receiver need to search for appropriate beams before they can communicate with each other. Existing mmWave standards address the beam search process as part of the initial access (IA), and use contention based schemes that let multiple clients train their beams in the same search interval. However, there exists a severe power imbalance among competing clients' beams, as clients naturally have different orientations and are at different distances from the same access point. This beam power imbalance coupled with poor contention protocols results in poor IA fairness in dynamic systems with multiple clients. We propose a joint power control and contention adaptation protocol (coined JPOC) that addresses this unfairness problem. JPOC uses an open-loop and client-side power control mechanism that reduces the beam power imbalance among competing clients. It also uses a model-driven contention adaptation protocol that optimally adjusts the duration of the contention time according to the system dynamics. Comprehensive evaluation through a mixture of experiments and simulations show that compared to existing 802.11 ad/ay standards, JPOC substantially reduces the contention overhead and increases the IA fairness. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1109/ICNP49622.2020.9259392 | 2020 IEEE 28th International Conference on Network Protocols (ICNP) |
Keywords | DocType | ISSN |
fair initial access design,millimeter-wave systems,highly directional beams,narrow beamwidths,high path loss,frequency bands,narrow beams,link establishment process,appropriate beams,mmWave standards,beam search process,use contention based schemes,multiple clients,search interval,competing clients,access point,beam power imbalance,poor contention,poor IA fairness,dynamic systems,joint power control,open-loop,client-side power control mechanism,model-driven contention adaptation protocol,contention time,system dynamics,contention overhead | Conference | 1092-1648 |
ISBN | Citations | PageRank |
978-1-7281-6993-4 | 1 | 0.37 |
References | Authors | |
11 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Suresh Srinivasan | 1 | 27 | 8.47 |
| Xi Yu | 2 | 1 | 0.37 |
| Alireza Keshavarz-haddad | 3 | 347 | 23.24 |
| Ehsan Aryafar | 4 | 324 | 22.39 |