Performance Modeling of LTP-HARQ Schemes Over OSTBC-MIMO Channels for Hybrid Satellite Terrestrial Networks

Abstract

Recently, with the development of Ka-band high throughput satellites and hybrid satellite-terrestrial networks, distributed/virtual multiple-input multiple-output (MIMO) technology over satellites have attracted considerable research interest. In this paper, a novel performance analysis framework is proposed for MIMO with orthogonal space-time block coding under Licklider transmission protocol (LTP) for emerging hybrid satellite terrestrial networks, where we derive the closed-form expressions of the mean number of transmission rounds by using Laplace transform for reliable data delivery in automatic repeat request (ARQ) and hybrid-ARQ schemes. Furthermore, we obtain the throughput expressions and unit information energy for lossless- and truncated-(H)ARQ schemes, and the maximum throughput and minimum unit information energy value on information rate. We also investigate the LTP file delivery time over Rayleigh and Rician fading channels. Simulations results are provided to demonstrate the validity of our theoretical results and show the effect of antenna number on the system performance.

Keywords

• Hybrid satellite terrestrial networks
• OSTBC-MIMO system
• HARQ
• LTP
• fading channels