When running the Link Test with Multiple VCs, data rates per VC may be lower than that initially expected. In this test, the AP is offering data to all VCs participating in the test. Consequently the AP scheduler has to share the capacity of the wireless medium amoung all the active VC. It is this sharing which reflects the lower rate per VC compared to a test performed on a VC with no other traffic on the sector.
cnMedusa has been optimised for maximising the minimum rate that can be delivered to SMs under busy conditions. This enables the service provider to increase the number of end customers that can receive video on demand during peak time.
The following results were obtained from a customer sector. In this case 111 VC participated in the link test and the sector delivered an aggregate of 193.28 Mbps. This corresponds to an average rate per VC of 1.7 Mbps but as the per VC results show there is a spread of results depending on the spatial multiplexing gain and modulation rate achieved for each individual VC.
