Enabling group communication for public safety in LTE-Advanced networks

2018 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)

Uusitalo

Navratil

et al. 2018

Self Cite

In the recent past, with the ubiquitous adoption of smartphones and tablets, there has been an exponential increase in data rate demands which has become increasingly challenging for network operators to support. This trend is expected to continue in future, with the advent of high-performance gaming and increasing appetite for immersive applications and social media experiences. Such factors have contributed to the development of the fifth generation (5G) of mobile networks, which would be supporting significantly higher data rates with improved reliability and latency. 5G has also enabled the deployment of wireless virtual reality applications, with wide-ranging use cases. In this work, we consider the key challenges for broadcasting such content to a large number of audience thereby enabling new disruptions in mass media consumption. The technology potential and practical constraints for such deployments were also evaluated using realistic network settings. Based on the performance evaluations, it was shown that with slightly higher system bandwidth requirements, VR broadcast can be supported under ideal conditions, using 5G millimeter wave small cell networks. Potential areas for future work in order to make VR broadcast a reality is also discussed.

Section: Introductionmentioning

confidence: 99%

Challenges for enabling virtual reality broadcast using 5G small cell network

2018 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)

Uusitalo

Navratil

et al. 2018

Self Cite

“…Here we consider 5.2 Gbps data requirement, based on the evaluations done in [5], thereby using the results in [6] as a baseline for further optimization. The throughput calculations are done based on the modified Shannon formula proposed in [17], with multicast/broadcast specific parameters selected based on the values used in [18]. Improvement in minimum user throughput value Fig.…”

Section: A Simulation Assumptionsmentioning

confidence: 99%

Optimizing Over-The-Air Virtual Reality Broadcast Transmissions with Low-Latency Feedback

2018 IEEE 5G World Forum (5GWF)

Maeder

Uusitalo

2018

Self Cite

Virtual reality is one of the most challenging use cases in 5G due to the need for simultaneous support for high data rates, low-latency and high-reliability. In this work, we consider a radio resource efficient mechanism for the mass delivery of such content to a multitude of users with D2D augmented 5G broadcast. Based on detailed performance evaluations conducted using 5G system setting, it is shown that the optimized mechanism can provide significant gains in terms of cell-edge user throughput and resultant spectral requirements for broadcast. The performance gains are obtained due to the ability of the system to optimize the operating point, instead of targeting the worst user which has been the traditional approach for broadcast. The proposed mechanism could be an enabler for mitigating the key challenges currently foreseen for the broadcast of such immersive content.

“…We assume that all the UEs have line-of-sight link with all the BSs, and due to the low-cost assumptions of the µO networks, the 5G base stations are assumed to use omni-directional antennas for broadcast. The throughput calculations are done based on the modified Shannon formula proposed in [22], with multicast / broadcast specific parameters considered in [2].…”

Section: A Simulation Assumptionsmentioning

confidence: 99%

“…Multicast and broadcast (Point-to-Multipoint / PTM) communication enabled using the evolved Multimedia Broadcast / Multicast Service (eMBMS) feature [1], has been a key component in Third Generation (3G) and Fourth Generation (4G) LTE-Advanced (LTE-A) wireless networks, in enabling resource efficient content distribution [2]. The content has mainly been TV broadcast and public safety (public warning systems and mission critical communication systems) in legacy broadband networks.…”

Section: Introductionmentioning

confidence: 99%

“…One of the most important problem related to µO networks and PTM transmissions, is related to the setting up of spectrally-efficient single frequency network (SFN) [2] using unlicensed band deployments, while complying to the regulatory requirements of unlicensed band transmissions. This would be an important enabler for µO deployments using 5G-Xcast transmissions, and a key driver for the support of new verticals and use cases in 5G.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhancements for Enabling Point-to-Multipoint Communication Using Unlicensed Spectrum

2018 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)

Lundén

et al. 2018

Self Cite

Exponential increase in data rate demand has lead to the periodic upgrade of mobile network infrastructure, with a new generation of wireless access technology being developed every decade. Currently, the fifth generation (5G) of mobile networks -supporting higher data rates and reliability, with lower latency are being developed and planned to be deployed. Pointto-Multipoint or multicast / broadcast communication, which has received limited attention so far in 5G, enables the delivery of common content to a multitude of users, while consuming minimal amount of radio resources. In this work, we consider the usage of unlicensed spectrum for enabling such transmissions using enhancements of the currently specified LTE-Advanced eMBMS network. The proposed enhancements are fully compatible with distributed radio access network deployments, and require limited coordination between base stations. Using realistic 5G network assumptions, we also evaluate performance of such enhancements in delivering media content to a large number of users.