A statistical space-time model for indoor wireless propagation based on empirical measurements is compared with results from the deterministic ray-tracing simulation tool MSE for the same environment. Excellent agreement is found in terms of the distributions of arrival times and angular spread for both modeling approaches. The MSE package is also use to synthesize MIMO channel matrices and determine the theoretical capacity available in the tested environments. It is found that, for narrowband channels, the spatial clustering of the multipaths limits the capacity gains associated with increased array size.

Abstmct -This paper presents the results of experiments obtained w i t h a narrowband, multiple-input multiple-output (MIMO) channel probe in an indoor ofAce/laboratory environment. T h e system employs ten transmit and ten receive antennas, and computes the 10 x 10 narrowband channel matrix at 2.4 GHz every 80 milliseconds. We use the data to s t u d y the distribution of the channel coefflcients, their temporal variability, and the resulting effects on channel capacity. We also compare the empirical results with those predicted by WiSE, a state-of-the-art channel simulator based o n ray-tracing from Lucent Technologies.

No abstract

No abstract