Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO Systems
This paper investigates the uplink of multi-user massive multi-input multioutput (MIMO) systems with a mixed analog-to-digital converter (ADC) receiver architecture, in which some antennas are equipped with costly full-resolution ADCs and others with less expensive low-resolution ADCs. A closed-form...
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| Format: | Article |
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IEEE
2016-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/7552476/ |
| _version_ | 1818618652969140224 |
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| author | Weiqiang Tan Shi Jin Chao-Kai Wen Yindi Jing |
| author_facet | Weiqiang Tan Shi Jin Chao-Kai Wen Yindi Jing |
| author_sort | Weiqiang Tan |
| collection | DOAJ |
| description | This paper investigates the uplink of multi-user massive multi-input multioutput (MIMO) systems with a mixed analog-to-digital converter (ADC) receiver architecture, in which some antennas are equipped with costly full-resolution ADCs and others with less expensive low-resolution ADCs. A closed-form approximation of the achievable spectral efficiency (SE) with the maximum-ratio combining detector is derived. Based on this approximated result, the effects of the number of base station (BS) antennas, the transmit power, the proportion of full-resolution ADCs in the mixed-ADC structure, and the number of quantization bits of the low-resolution ADCs are revealed. Results show case that the achievable SE increases with the number of BS antennas and quantization bits, and it converges to a saturated value in the high user power regime or the full ADC resolution case. Most important, this work efficiency verifies that for a massive MIMO, the mixed-ADC receiver with a small fraction of full-resolution ADCs can have comparable SE performance with the receiver with all full-resolution ADCs but at a considerably lower hardware cost. |
| first_indexed | 2024-12-16T17:25:00Z |
| format | Article |
| id | doaj.art-ff17baf8ac8546ce9754bda9d29dd707 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T17:25:00Z |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-ff17baf8ac8546ce9754bda9d29dd7072022-12-21T22:23:05ZengIEEEIEEE Access2169-35362016-01-0147841784610.1109/ACCESS.2016.26027987552476Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO SystemsWeiqiang Tan0https://orcid.org/0000-0001-7047-8091Shi Jin1Chao-Kai Wen2Yindi Jing3National Communications Research Laboratory, Southeast University, Nanjing, ChinaNational Communications Research Laboratory, Southeast University, Nanjing, ChinaInstitute of Communications Engineering, National Sun Yat-sen University, Kaohsiung, TaiwanDepartment of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, CanadaThis paper investigates the uplink of multi-user massive multi-input multioutput (MIMO) systems with a mixed analog-to-digital converter (ADC) receiver architecture, in which some antennas are equipped with costly full-resolution ADCs and others with less expensive low-resolution ADCs. A closed-form approximation of the achievable spectral efficiency (SE) with the maximum-ratio combining detector is derived. Based on this approximated result, the effects of the number of base station (BS) antennas, the transmit power, the proportion of full-resolution ADCs in the mixed-ADC structure, and the number of quantization bits of the low-resolution ADCs are revealed. Results show case that the achievable SE increases with the number of BS antennas and quantization bits, and it converges to a saturated value in the high user power regime or the full ADC resolution case. Most important, this work efficiency verifies that for a massive MIMO, the mixed-ADC receiver with a small fraction of full-resolution ADCs can have comparable SE performance with the receiver with all full-resolution ADCs but at a considerably lower hardware cost.https://ieeexplore.ieee.org/document/7552476/Massive MIMOlow-resolution ADCmixed-ADC receiverspectral efficiencymaximum-ratio combining detector |
| spellingShingle | Weiqiang Tan Shi Jin Chao-Kai Wen Yindi Jing Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO Systems IEEE Access Massive MIMO low-resolution ADC mixed-ADC receiver spectral efficiency maximum-ratio combining detector |
| title | Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO Systems |
| title_full | Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO Systems |
| title_fullStr | Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO Systems |
| title_full_unstemmed | Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO Systems |
| title_short | Spectral Efficiency of Mixed-ADC Receivers for Massive MIMO Systems |
| title_sort | spectral efficiency of mixed adc receivers for massive mimo systems |
| topic | Massive MIMO low-resolution ADC mixed-ADC receiver spectral efficiency maximum-ratio combining detector |
| url | https://ieeexplore.ieee.org/document/7552476/ |
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