DeepAI AI Chat
Log In Sign Up

Stability and Throughput Analysis of Multiple Access Networks with Finite Blocklength Constraints

by   Christos K. Kourtellaris, et al.
University of Cyprus

Motivated by the demand of ultra reliable and low latency communications, we employ tools from information theory, stochastic processes and queueing theory, in order to provide a comprehensive framework regarding the analysis of a Time Division Multiple Access (TDMA) network with bursty traffic, in the finite blocklength regime. Specifically, we re-examine the stability conditions, evaluate the optimal throughput, and identify the optimal trade off between data packet size and latency. The evaluation is performed both numerically and via the proposed approximations that result in closed form expressions. Then, we examine the stability conditions and the performance of the Multiple Access Relay Channel with TDMA scheduling, subject to finite blocklength constraints, by applying a cognitive cooperation protocol that assumes relaying is enabled when sources are idle. Finally, we propose the novel Batch-And-Forward (BAF) strategy, that can significantly enhance the performance of cooperative networks in the finite blocklength regime, as well as reduce the requirement in metadata. The BAF strategy is quite versatile, thus, it can be embedded in existing cooperative protocols, without imposing additional complexity on the overall scheme.


page 1

page 2

page 3

page 4


Rate-Splitting Multiple Access with Finite Blocklength for Short-Packet and Low-Latency Downlink Communications

Rate-Splitting Multiple Access (RSMA) is an emerging flexible and powerf...

Max-Min Fairness of Rate-Splitting Multiple Access with Finite Blocklength Communications

Rate-Splitting Multiple Access (RSMA) has emerged as a flexible and powe...

Max-Min Fairness Based on Cooperative-NOMA Clustering for Ultra-Reliable and Low-Latency Communications

In this paper, the performance of a cooperative relaying technique in a ...

Performance of Non-orthogonal Multiple Access under Finite Blocklength

In this paper, we present a finite-block-length comparison between the o...

System-Level Dynamics of Highly Directional Distributed Networks

While highly directional communications may offer considerable improveme...

Throughput Optimization of Coexistent LTE-U and WiFi in Next Generation Networks

Next generation networks are envisioned to have ubiquitous availability ...