A Study on Multi-Preamble Based Random Access for 5G URLLC: Cross-Layer Approach

2021 ◽  
Vol 46 (2) ◽  
pp. 238-245
Author(s):  
Taehoon Kim ◽  
Inkyu Bang
Keyword(s):  
Random Access ◽  
Cross Layer

scholarly journals Cross-Layer Design of Wireless Multihop Random Access Networks

2012 ◽  
Vol 60 (5) ◽  
pp. 2562-2574 ◽  
Author(s):  
Morteza Mardani ◽  
Seung-Jun Kim ◽  
Georgios B. Giannakis
Keyword(s):  
Random Access ◽  
Access Networks ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Random Access Networks

scholarly journals Design of Efficient, Dependable SoCs Based on a Cross-Layer-Reliability Approach with Emphasis on Wireless Communication as Application and DRAM Memories

2020 ◽  
pp. 435-455
Author(s):  
Christian Weis ◽  
Christina Gimmler-Dumont ◽  
Matthias Jung ◽  
Norbert Wehn
Keyword(s):  
Mimo System ◽  
Random Access ◽  
Error Resilience ◽  
Advanced Technology ◽  
Cross Layer ◽  
Multiple Antenna ◽  
Error Resilient ◽  
Reliability Management ◽  
Inherent Error ◽  
Technology Nodes

AbstractMany applications show an inherent error resilience due to their probabilistic behavior. This inherent error resilience can be exploited to reduce the design margin for advanced technology nodes resulting in more energy and area efficient implementation. We present in this chapter a cross-layer approach for efficient reliability management in wireless baseband processing with special emphasis on memories since memories are most susceptible to dependability problems. A multiple-antenna (MIMO) system will be used as design example. Further on we focus on DRAMs (Dynamic Random Access Memories). All today’s computing systems rely on dependable DRAMs. In the future DRAM memories will become more undependable due to further scaling. This has to be counterbalanced with higher refresh rates, which leads to a higher DRAM power consumption. Recent research activities resulted in the concept of “approximate DRAM” to save power and improve performance by lowering the refresh rate or disabling refresh completely. Here, we present a holistic simulation environment for investigations on approximate DRAM and show the impact on error-resilient applications.

scholarly journals A Survey on Multipacket Reception for Wireless Random Access Networks

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Jia-Liang Lu ◽  
Wei Shu ◽  
Min-You Wu
Keyword(s):  
Research Work ◽  
Random Access ◽  
Network Capacity ◽  
Access Networks ◽  
Mobile Systems ◽  
Cross Layer ◽  
Multipacket Reception ◽  
Scheduling Method ◽  
Full Utilization ◽  
Wireless Mobile

Multipacket reception (MPR) is the capability of simultaneous decoding of more than one packet from multiple concurrent transmissions. Continuous investigations on increasing the reception capability are giving new scientific contributions. In this paper, we provide an overview of MPR-related research work covering (1) the theoretically proved impacts and advantages of using MPR from a channel perspective to network capacity and throughput; (2) the various technologies that enable MPR from transmitter, transreceiver, and receiver perspectives; (3) previous work on protocol improvement to better exploit MPR. Indeed, MPR approaches have been applied in modern wireless mobile systems but the focus of this paper is to discuss MPR in random access wireless networks. Using MPR in such multihop environments calls for new adaptation on protocols, especially a cross-layer approach. To this end, we detail a scheduling method that targets full utilization of MPR capability.

A cross-layer perspective in an uncharted path - Signal processing in random access

2004 ◽  
Vol 21 (5) ◽  
pp. 29-39 ◽  
Author(s):  
Lang Tong ◽  
V. Naware ◽  
P. Venkitasubramaniam
Keyword(s):  
Signal Processing ◽  
Random Access ◽  
Cross Layer
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