{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T02:28:19Z","timestamp":1747189699203,"version":"3.40.5"},"reference-count":28,"publisher":"World Scientific Pub Co Pte Ltd","issue":"16","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J CIRCUIT SYST COMP"],"published-print":{"date-parts":[[2020,12,30]]},"abstract":"<jats:p> This paper proposes an architecture to enhance coding efficiency (CE) of the Delta Sigma Modulator (DSM) transmitters. In this architecture, a complex\u2013low pass delta sigma modulator (LPDSM) is used instead of existing Cartesian\u2013LPDSM and polar\u2013low pass envelope delta sigma modulator (LPEDSM). Simulation results show that for Uplink long-term evolution (LTE) signal with 1.92[Formula: see text]MHz bandwidth and 7.8-dB peak to average power ratio (PAPR), the CE for the complex\u2013LPDSM-based transmitter is equal to 41.7% in compare to 9.7% CE for Cartesian\u2013LPDSM transmitter. Also, due to the resolving of noise convolution problem, the complex\u2013LPDSM-based transmitter baseband part needs lower oversampling ratio (OSR) and clock speed than polar\u2013LPEDSM transmitter baseband part to achieve the same signal-to-noise and distortion ratio (SNDR). In the next step, a quantization noise reduction loop is implemented in this architecture. By using this technique for an Uplink LTE signal with 1.92[Formula: see text]MHz bandwidth, with the same PAPR and OSR of 16, the CE is improved from 41.7% to 56.1% with 40[Formula: see text]dB SNDR. <\/jats:p>","DOI":"10.1142\/s0218126620502679","type":"journal-article","created":{"date-parts":[[2020,7,18]],"date-time":"2020-07-18T03:44:17Z","timestamp":1595043857000},"page":"2050267","source":"Crossref","is-referenced-by-count":2,"title":["Efficiency Improvement of Delta Sigma Modulator-Based Transmitter Using Complex Delta Sigma Modulator and Noise Reduction Loop"],"prefix":"10.1142","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9929-0858","authenticated-orcid":false,"given":"Nasser Erfani","family":"Majd","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, Shohadaye Hoveizeh University of Technology, Dasht-e Azadegan, Khuzestan, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amin","family":"Aeenmehr","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Shohadaye Hoveizeh University of Technology, Dasht-e Azadegan, Khuzestan, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2020,7,18]]},"reference":[{"key":"S0218126620502679BIB001","doi-asserted-by":"crossref","first-page":"469","DOI":"10.1007\/s11235-013-9708-z","volume":"53","author":"Sakran H.","year":"2013","journal-title":"Telecommun. 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