Channel Capacity for NOMA Weak Channel User and Capacity Region for NOMA with Gaussian Mixture Interference
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초록
Non-orthogonal multiple access (NOMA) has been considered for the fifth generation (5G) mobile networks toprovide high system capacity and low latency. We calculate the channel capacity for the weak channel user inNOMA and the channel capacity region for NOMA. In this paper, Gaussian mixture channel is compared to theadditive white Gaussian noise (AWGN) channel. Gaussian mixture channel is modeled when we assume thepractical signal modulation for the inter user interference, such as the binary phase shift keying (BPSK)modulation. It is shown that the channel capacity with BPSK inter user interference is better than that withGaussian inter user interference. We also show that the channel capacity region with BPSK inter user interferenceis larger than that with Gaussian inter user interference. As a result, NOMA could perform better in the practicalenvironments.
Abstract
Non-orthogonal multiple access (NOMA) has been considered for the fifth generation (5G) mobile networks toprovide high system capacity and low latency. We calculate the channel capacity for the weak channel user inNOMA and the channel capacity region for NOMA. In this paper, Gaussian mixture channel is compared to theadditive white Gaussian noise (AWGN) channel. Gaussian mixture channel is modeled when we assume thepractical signal modulation for the inter user interference, such as the binary phase shift keying (BPSK)modulation. It is shown that the channel capacity with BPSK inter user interference is better than that withGaussian inter user interference. We also show that the channel capacity region with BPSK inter user interferenceis larger than that with Gaussian inter user interference. As a result, NOMA could perform better in the practicalenvironments.
참고문헌 (5)
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- Zhiguo Ding, "Impact of User Pairing on 5G Nonorthogonal Multiple-Access Downlink Transmissions", IEEE Transactions on Vehicular Technology, 65(8), pp.6010~6023 (2016), Institute of Electrical and Electronics Engineers (IEEE)[DOI]
- Y. Saito, "System-level performance evaluation of downlink non-orthogonal multiple access(NOMA)", Proceedings of Personal Indoor and Mobile Radio Communications (PIMRC) (2013)
- Linglong Dai, "Non-orthogonal multiple access for 5G: solutions, challenges, opportunities, and future research trends", IEEE Communications Magazine, 53(9), pp.74~81 (2015), Institute of Electrical and Electronics Engineers (IEEE)[DOI]
- C. E. Shannon, "A Mathematical Theory of Communication", Bell System Technical Journal, 27(3), pp.379~423 (1948), Institute of Electrical and Electronics Engineers (IEEE)[DOI]