Multi Radio Diversity for Satellite-Terrestrial Mobile Communications

A diversity reception scheme using satellite and terrestrial links is an effective technique to reduce the large fading margins in satellite communications operating under fading conditions. The increased demand for bandwidth has led to the employment of frequencies above 10 GHz, where the dominant fading mechanism is rain attenuation. Signal attenuation is aggravated in heavy rain climatic regions. As it has been experimentally verified, the long-term behaviour of rain attenuation induced on a microwave path in tropical regions is approximated by a gamma distribution. In this paper, the outage performance analysis of a satellite-terrestrial diversity reception system operating at frequencies above 10 GHz is presented, employing spatially correlated gamma fading channels. The receiver combines the satellite signal with the signal received by a terrestrial network using either the Maximal Ratio Combining or the Selection Combining techniques. Extended numerical results present the impact of various operational, geometrical and geographical parameters on the outage system performance.

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“…In Figure 4, the CNR thresholds of both MRC and SC techniques for 3 10 out P − = are plotted versus the angular separation θ for 2 6 L Km =…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Synergy between satellite and terrestrial networks can be used to enhance the system performance [2], [3]. Transmitted signals from a satellite, e.g.…”

Section: Introductionmentioning

confidence: 99%

Satellite and terrestrial diversity reception performance in tropical regions

Skraparlis

Sakarellos

Panagopoulos

et al. 2009

2009 International Workshop on Satellite and Space Communications

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“…2) Resource Management: In model V , how to choose the appropriate access point, i.e., the satellite or the TBS, and how to allocate radio resources need to be carefully considered. Khan et al proposed a multi-radio access algorithm [175]. Choi et al investigated a scheduling strategy regarding whether to transmit to the mobile user directly or relay the signal by a ground gateway, and the beamforming, user scheduling, as well as routing were jointly optimized [176].…”

Section: Model Vmentioning

confidence: 99%