Quality assessment for terrestrial digital video broadcast over optical wireless communication‐passive optical network under moderately turbulent regime with spatial diversity

Abstract

Summary The preceding decade has seen successful rollout of 5G and convergence of broadcast broadband and telecom sector. The near future bandwidth demands for services such as advanced immersive multimedia are even more challenging. This has led to advent of 6G. The access technologies need to provide virtually unlimited data rates to support majority of applications in 6G. The optical wireless communication (OWC) with its inherent advantages is a potential enabler in this scenario. However, phenomenon such as atmospheric turbulence poses a serious degradation to performance of such systems. For multimedia services, end user perception is the ultimate quality indicator. To ascertain this quality in quantitative terms, full reference quality metrics are employed for communication purposes. In this paper, digital video broadcasting terrestrial (DVB‐T) videos with varying complexities are transmitted over OWC‐passive optical network (PON) architecture. For performance enhancement 2 × 2 repetitive coding MIMO is employed with maximal ratio combining receiver. A total of 6 video quality assessment (VQA) metrics are evaluated for the system w.r.t channel parameter as Rytov variance. For all the VQA metrics, an enhancement in the performance is observed by using MIMO technique. This performance improvement is more prominent for more complex video as compared to less complex video. As for the limiting case BER of 10−3 gives a limiting link distance of 1350 m; however with VQA metrics, the limiting case distance is 1280 m. By the use of 2 × 2 MIMO techniques, this distance enhances by 20–25 m.

An Interactive Approach to an Immersive Multimedia-Based Online Course in Vocal Music

“…Literature [14], by exploring the application of immersive communication environments to advanced issues of modern focus, combined with the characteristics of immersive multimedia, categorized immersive computing environments into three main categories: entertainment, business, social and simulation for learning and education, demonstrating that immersive applications in various fields can facilitate the development of each field based on virtual reality technology. Literature [15] proposes that due to the successful launch of 5G technology and the convergence of the broadcast broadband and telecommunication industries, the bandwidth requirements and challenges of services such as advanced immersive multimedia in the future, over the OWC-Passive Optical Network Architecture transmits digital video broadcast terrestrial video of varying complexity to improve the performance of immersive multimedia.…”