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In this paper, we address the need for motivating applications, such as mission critical industrial control and medical applications, to operate under the Ultra-Reliable Communication (URC) mode in the future 5th Generation (5G) cellular wireless networks, while also under strict Quality of Service (QoS) constraints such as ultra-low latency. Reliability has been shown to improve by using Hybrid Automatic...
5G New Radio (NR) is envisioned to support three broad categories of services: evolved mobile broadband (eMBB), ultra-reliable and low-latency communications (URLLC), and massive machine-type communications (mMTC). The URLLC services refer to future applications that require secure data communications from one end to another with ultra-high reliability and deadline-based low latency requirements....
Many real world networks are characterized by long delays, frequent path breaks, mobility, and lack of infrastructure. Class of networks which can cope up with such environments are called Delay Tolerant Networks (DTN). Architectures with a separate bundle layer, have been implemented in specific applications such as interplanetary networks (IPNs). However, the addition of bundle layer to existing...
To ensure the low end-to-end (E2E) delay for tactile internet, short frame structures will be used in 5G systems. As such, transmission errors with finite blocklength channel codes should be considered to guarantee the high reliability requirement. In this paper, we study cross-layer transmission optimization for tactile internet, where both queueing delay and transmission delay are accounted for...
In a data communication network, several flows contend to utilize limited and shared network resources, however, this gives rise to congestion along with other network issues. So, this leads to the development of congestion control based methods/ protocols to support the deployment of real-time multimedia applications while ensuring reliability and fairness. This paper presents a simulation based...
In this paper, we propose a Fragmentation-based Multipath Routing (FMR) model for Software Defined Networks (SDNs) to enable attack-resilient data transfer. With the use of erasure encoding to fragment a message, the fragments are routed along multiple paths such that no intermediate node receives enough fragments required for message decoding. This ensures that, any intruder on a compromised node...
With the increase of needs in capability, bandwidth and reliability of modern aeronautical equipment, Avionics Full-Duplex Switched Ethernet (AFDX) network has gained in popularity since its successful implementation in the Airbus A380. As AFDX networkis a deterministic network, frames have to reach the reception End-System (ES) within a limited amount of time: the upper bound of the end-to-end delay...
This paper proposes and evaluates a performance efficient application mapping algorithm for mesh-based NoCs. The proposed algorithm first prioritizes tasks of the given application graph based on their total in/out communication traffic. Then a task with the most communication traffic is selected and mapped onto the center part of the mesh topology i.e., a core with the most available communication...
In industrial applications, power quality has been an issue drawing increasing concerns due to its severe consequences on system performance and downtime cost. Voltage sags are classified as one of the most common power quality issues. In order to guarantee system operation under several line sag scenarios, international standards such as SEMI F47, IEC-61000-4-34, and IEC-61000-4-11 have been established...
Industry 4.0 is a subject of current relevance which targets detailed information acquisition from industrial production processes. Wireless communication to ease this acquisition process is highly interesting but suffers today from problems of low reliability, high latency and small flexibility. ParSec addresses these subjects by investigating an innovative, CDMA based approach with very low latency...
Tactile internet requires ultra-low latency and ultrahigh reliability, which bring new challenges to the design of mobile systems. In this paper, we study how much resources are required to ensure the short end-to-end (E2E) delay and high reliability by taking a vehicle communication system as an example, where the E2E delay includes both queueing delay and transmission delay, and the reliability...
The problem of path optimization and k disjoint pairs are important in survivable, QoS-aware communication network and SDN controlled networks. While the problem of optimally solving for maximally link-disjoint path pairs have always received a good level of attention, more work is needed with respect to k-maximally disjoint, multi-constrained, multiple QoS link weights route provisioning, and efficient...
The fifth generation (5G) of cellular networks is starting to be defined to meet the wireless connectivity demands for 2020 and beyond. One area that is considered increasingly important is the capability to provide ultra-reliable and low-latency communication, to enable e.g., new mission-critical machine-type communication use cases. One such example with extremely demanding requirements is the industrial...
Ensuring end-to-end quality of service for video applications requires the network to choose the most feasible path in terms of bandwidth, delay and jitter. Quality of service can only be ensured if the paths are reliable — perform to specification per request. This paper makes four contributions to research. First, it presents Reliable Video over Software-Defined Networking (RVSDN) which builds upon...
Mobile devices with oodles of interfaces communicating concurrently through multi-homed access networks with a blend of wired and wireless transmission parameters need efficient data delivery. To suffice the need this paper investigates the impact of various retransmission policies viz. RTX-SAME, RTX-ASAP, RTX-LOSSRATE, RTX-SSTRESH, RTX-CWND, AllRtxSame, AllRtxAlt and FrSameRtoAlt on the throughput...
A popular way to track video usage is by sending periodic heartbeats from the player. In a given video session, heartbeats identify that the session is alive, but do not capture the user's actions on the video (play, pause, seek, etc.). If the video providers use different frequencies for the heartbeat, usage data for the same video published to different websites cannot be compared across publishers...
We investigate the amount of radio spectrum re- quired for reliable vehicle-to-vehicle (V2V) communication for traffic safety. The basic feature of the traffic safety application is that it uses periodical broadcasts of status messages containing the location and velocity of transmitting vehicles. In our study we consider two dominant technologies for V2V communication, namely IEEE 802.11p and self-organizing...
Memory compression has been proposed and deployed in the past to grow the capacity of a memory system and reduce page fault rates. Compression also has secondary benefits: it can reduce energy and bandwidth demands. However, most prior mechanisms have been designed to focus on the capacity metric and few prior works have attempted to explicitly reduce energy or bandwidth. Further, mechanisms that...
Network-On-Chips (NoCs) have become the standard communication platform for future massively parallel systems due to their performance, flexibility and scalability advantages. However, reliability issues brought about by scaling in the sub-20nm era threaten to undermine the benefits offered by NoCs. In this paper, we showthat QoS policies exacerbate the reliability profile of an exascale system. To...
In this paper, we present a bandwidth-efficient data reliability mechanism for Smart Grid Wide-Area Monitoring communication networks. Reliable transmission of data pack-ets, especially feedback control packets, is deemed a critical requirement. By sending multiple copies of data packets on node or edge disjoint paths, reliability can be achieved. However, this is inefficient in terms of bandwidth...
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