This paper proposes: 1) a traffic flow management policy, which allocates and organizes machine type communication (MTC) traffic flows network resources sharing within evolved packet system (EPS); 2) an access element as a wireless sensor network gateway for providing an overlaying access channel between the machine type devices and EPS; and 3) it addresses the effect and interaction in the heterogeneity of applications, services and terminal devices, and the related quality of service (QoS) issues among them. This paper overcomes the problems of network resource starvation by preventing deterioration of network performance. The scheme is validated through simulation, which indicates the proposed traffic flow management policy outperforms the current traffic management policy. Specifically, simulation results show that the proposed model achieves an enhancement in QoS performance for the MTC traffic flows, including a decrease of 99.45% in packet loss rate (PLR), a decrease of 99.89% in packet end to end (E2E) delay, a decrease of 99.21% in packet delay variation (PDV). Furthermore, it retains the perceived quality of experience of the real time application users within high satisfaction levels, such as the voice over long term evolution service possessing a mean opinion score (MOS) of 4.349 and enhancing the QoS of a video conference service within the standardized values of a 3GPP body, with a decrease of 85.28% in PLR, a decrease of 85% in packet E2E delay and a decrease of 88.5% in PDV. Index Terms-Application quality of service (AQoS), end to end (E2E) delay, gateway, human type communication (HTC), Internet of Things (IoT), jitter, machine type communication (MTC), network QoS (NQoS), quality of experience (QoE), QoS class identifier (QCI), traffic policy.
A theory to allocate a wavelength in the tree networks coordinated arrangement in m-arity networks is proposed. Wavelength required equations to support all-to-all unicasting in the network according to its depth are presented. Three cases are examined: when nodes are only targets, sources or target and source in the same time. The trade-off between wavelength cost and wavelength conversion cost is considered; therefore, concentration is on wavelength allocation without conversion.Introduction: Tree networks have been investigated according to various schemes. Some works adopted symmetric tree networks (arity or m-ary networks), such as binary, ternary, quaternary and so on [1], whereas the other works have implemented random tree networks in their researches [2][3][4]. A binary tree network is implemented to investigate the performance and improve it by increasing the throughput and decreasing the latency. In [5], packet losses has been minimised. In [6], an optical-network-on-chip is proposed that significantly reduces the packet latency through simulations using a binary network. The reasons behind choosing symmetric networks are:
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