Loading of channels to achieve maximum throughput. By estimating the current load based on the observable channelįeedback, the algorithm adaptively controls user access to maintain the optimal Scenarios, we propose adaptive load regulation through a practical user barringĪlgorithm. To cope with the potential bursty traffic in mMTC However, our analytical results also reveal the sensitivity of load on the NOMA-RA with four power levels achieves over three times that of the MS-ALOHA. Despite the higher-power dominance effect, the maximum throughput of Performance advantage of the proposed NOMA-RA scheme by comparing with theīaseline multi-channel slotted ALOHA (MS-ALOHA), with and without captureĮffect. We explicitly quantify the throughput gain for the This is due to the higher-power dominance characteristic in power-domain NOMA In maximum throughput, the growth of throughput gain is slower than linear. While increasing the number of power levels in NOMA-RA leads to a further gain Performance of NOMA-based random access (RA), namely NOMA-RA.

In this paper, we first analytically study the throughput Massive number of devices competing to access the limited number of shared Solution to support massive machine type communication (mMTC) that faces a Authors: Wenjuan Yu, Chuan Heng Foh, Atta ul Quddus, Yuanwei Liu, Rahim Tafazolli Download PDF Abstract: Being able to accommodate multiple simultaneous transmissions on a singleĬhannel, non-orthogonal multiple access (NOMA) appears as an attractive

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