Outage Analysis Of Mm Wave Cellular Networks Employing JSDM

In this paper,the outage performance of relay-assisted millimeter wave(mmWave)cellular networks employing joint spatial division and multiplexing(JSDM)and the outage performance of a two-tier heterogeneous mmWave cellular networks employing JSDM are investigated.In the relay-assisted mmWave cellular networks,it is assumed that the macro base station(BS)equipped with a large number of antennas serves the single antenna relay and users simultaneously,that the relay is located at the edge of the macro cell and the system includes the second stage precoding and no second stage precoding.In the two-tier heterogeneous mmWave cellular networks,the large number of antennas macro BSs,single antenna pico BSs and single antenna users are distributed according to independent Poisson point processes(PPPs).In the two different system models,theoretical analysis of the signal-to-interference-plus-noise ratio(SINR)outage probability of each user is first obtained.The cell SINR outage probability is then derived.In the relay-assisted mmWave networks with the second stage precoding and the two-tier heterogeneous mmWave network,under the noise-limited assumption,simplified closed-form expressions of the outage probability are given as well.The simulation results match the analysis results,validating the theoretical analysis in the two networks.In the relay-assisted mmWave cellular networks,simulation results demonstrating the performance improvement due to the relay introduced by the pico BS are provided.In the two-tier heterogeneous mmWave cellular networks,simulation results in accordance with theoretical analysis demonstrating the performance improvement of two-tier networks than the single-tier network are provided.