452 research outputs found
On the Performance of PDCCH in LTE and 5G New Radio
5G New Radio (NR) Release 15 has been specified in June 2018. It introduces
numerous changes and potential improvements for physical layer data
transmissions, although only point-to-point (PTP) communications are
considered. In order to use physical data channels such as the Physical
Downlink Shared Channel (PDSCH), it is essential to guarantee a successful
transmission of control information via the Physical Downlink Control Channel
(PDCCH). Taking into account these two aspects, in this paper, we first analyze
the PDCCH processing chain in NR PTP as well as in the state-of-the-art Long
Term Evolution (LTE) point-to-multipoint (PTM) solution, i.e., evolved
Multimedia Broadcast Multicast Service (eMBMS). Then, via link level
simulations, we compare the performance of the two technologies, observing the
Bit/Block Error Rate (BER/BLER) for various scenarios. The objective is to
identify the performance gap brought by physical layer changes in NR PDCCH as
well as provide insightful guidelines on the control channel configuration
towards NR PTM scenarios.Comment: Globecomm 2018 workshop, 6 pages, 7 fig
Analysis of Uplink Scheduling for Haptic Communications
While new mechanisms and configurations of the 5G radio are offering step
forward in delivery of ultra-reliable low latency communication services in
general, and haptic communications in particular, they could inversely impact
the remainder of traffic services. In this paper, we investigate the uplink
access procedure, how different advances in this procedure enhance delivery of
haptic communication, and how it affects the remainder of traffic services in
the network. We model this impact as the remainder of service, using stochastic
network calculus. Our results show how best the tradeoff between faster or more
resource efficient uplink access can be made depending on the rate of haptic
data, which is directly relevant to the application domain of haptic
communication.Comment: 8 pages, 14 figures, conference pape
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