The agenda for the seminar is listed below.

Speaker: Bingyu Xu

Title: User Association in Massive MIMO and mmWave Enabled HetNets Powered by Renewable Energy

The fifth generation (5G) cellular networks will be designed for the provision of the anticipated 1000x data increase [1]. To achieve this target, several emerging techniques such as dense heterogeneous networks (HetNets), massive multi-input multi-output (MIMO), millimeter wave (mmWave), etc. are developed . However, none of these techniques can solely accomplish 5G requirements, and the integration of them is identified as a promising solution.
This paper considers a hybrid heterogeneous net- work (HetNet), where macro cells adopt massive multiple-input multiple-output (MIMO), and small cells adopt millimeter wave (mmWave) transmissions. We assume that all base stations (BSs) are solely powered by the renewable energy. The implementation of these emerging techniques has a substantial effect on the user association (UA). Motivated by this, we formulate a user associ- ation problem to maximize the network utility while the power cost of each BS does not exceed the harvested energy. To solve it, a low complexity distributed UA algorithm is proposed. The results demonstrate that the proposed algorithm achieves higher throughput than the max reference signal received power (RSRP) and max signal-to-interference-plus-noise ratio (SINR) UAs. Compared with massive MIMO macro cells, mmWave small cells play a dominant role in enhancing the throughput of the networks due to the larger bandwidths.

For more details, please go to the link‚Äč

Venue: Eng. 216

Time and Date: 2 to 3 PM, Wednesday, 14/10/15.

Any comments, advice would be appreciated.

2015 Oct 14th — Bingyu Xu