Performance of Dedicated Indoor MIMO HSDPA Systems

MIMO and higher-order modulation (64-QAM) have recently been introduced in the HSPA downlink (HSDPA) to extend peak data rates. Both techniques demand a high SINR operating point in order to be effective. While traditional macrocell (outdoor) deployments may provide limited high-rate coverage, indoor environments are more likely scenarios for achieving high rates due to higher SINR operating points. This paper evaluates performance for an indoor pico-cell system using a selective-PARC (S-PARC) MIMO scheme in combination with 64-QAM. A typical multi-story office building is considered with pico-cells located on each floor. Within each pico-cell both a single antenna cluster and distributed antenna clusters are considered. Results from system simulations show very large gains in both user and system throughput compared to a receive diversity only system. 90th percentile user throughput over 40 Mbps and system throughput of 30 Mbps are achieved.