Age and Energy Analysis for $L$th Best Relay Enabled Cooperative Status Update Systems With Short Packet Communications

Strategic Age of Information Aware Interaction Over a Relay Channel

“…As failures are independent from the update process, the thinned process considering only successfully received updates is still a Bernoulli process, with probability ρ = p(1 − f ), which we can substitute into (18) and prove the Lemma.…”

“…To the best of our knowledge, this is the first work to consider the distributed optimization of such a relay scenario, including both expected AoI and PAoI violation probability and providing exact theoretical guarantees for performance. Previous works on AoI in relay-aided systems [15], [16], [18] either compute the age without considering the optimization of the network or optimize the scenario in a centralized fashion, using heuristics and approximate formulations of the age.…”

“…In [29], a similar scenario is considered but the communication is bidirectional and the relay is two-way. The use of short blocklength codes with multiple parallel relays was also explored in recent work [18], [30], potentially optimizing the packet length, the retransmission procedures over both links, and the number of selected relays to control the age-energy trade-off.…”

An Architecture for AoI and Cache Hybrid Multicast/Unicast/D2D With Cell-Free Massive MIMO Systems

“…The notation of AoI has been widely accepted for fantastic research endeavors in various sectors from the community of academic, industry, and standardization domains that are oriented toward generating new performance measures to emphasize the ''freshness'' of the delivered information. In these situations, the quality of the acquired data's freshness is crucial for making well-informed decisions and is paramount to the timely delivery of the latest information, as any stale information and unfresh data not only potentially degrade overall performance, resulting in erroneous control decisions, but also in traffic accidents and deleterious loss [29]. Fig.…”

“…In comparison to the cellular counterpart, the abundance of spatial diversity gain and extraordinary macroscopic diversity provided by the advent of cell-free massive multiple-input multipleoutput (MIMO) have been regarded as a new paradigm in the design to effectively handle the rapid growth of data traffic, resolve access collision, and enhance capacity with affordable complexity [7], [8], [9], [10], which opens up new avenues for the enhanced mMTC, uRLLC, and eMBB. In addition, significant breakthroughs including software-defined networking (SDN) [11], [12], network function virtualization (NFV) [12], [13], multicast transmission [14], [15], [16], [17], [18], device-to-device (D2D) [19], [20], [21], wireless cache [22], [23], [24], and age of information (AoI) [25], [26], [27], [28], [29] have also been recognised as a main building blocks technology as well. Especially, the typical traffics of eMBB, mMTC, and uRLLC for main 6G technology in presented in Fig.…”