Advanced Satellite Communications Research

The impact on wireless communication system performance was investigated for five channel conditions, which included (1) additive white Gaussian noise, (2) flat Raleigh fading, (3) frequency selective Raleigh fading, (4) flat Rician fading, and (5) frequency selective Rician fading.

Wichita State University, Wichita, Kansas

New algorithm strategies and diverse communication techniques are constantly emerging in the telecommunications realm that consumers, commercial, government, and military demand in order to push the boundaries of data throughput to receive information as quickly as possible. Currently, the Ku/Ka satellite band (20-30 GHz) becomes congested during peak service. There has been a strong demand for a wider bandwidth and higher data rate in both cellular and satellite communication service. As the carrier frequency increases, a wider bandwidth can be made available, and a higher data rate can be obtained with beamforming or precoding. Particularly, the V band (50-75 GHz) and W band (75-110 GHz) offer unprecedented broadband capabilities and extremely large contiguous allocations of bandwidth. This is the reason NASA and AFRL have been investigating these bands for civilian and military use.

At W/V-band, the wavelength is on the order of 3 to 4 millimeters. Thus, receivers can be implemented via very small devices. Further, a W/V-band system can have a very narrow beam angle-spread, which can significantly reduce the interference among beams and recover propagation loss.