Distributed Spatial Multiplexing Systems With Hardware Impairments and Imperfect Channel Estimation Under Rank-1 Rician Fading Channels

Miridakis, Nikolaos I.; Tsiftsis, Theodoros A.; Rowell, Corbett

doi:10.1109/tvt.2016.2624801

Cited by 22 publications

(23 citation statements)

References 54 publications

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“…Here, the following three cases considered in Fig. 2 are investigated: 1)M 0 = obtained by the analytical expression (23). As expected, the sum rate approach a fixed value as K → ∞.…”

Section: A Achievable Ratementioning

confidence: 68%

Performance Analysis of Mixed-ADC Massive MIMO Systems Over Rician Fading Channels

Zhang

Dai

et al. 2017

IEEE J. Select. Areas Commun.

266

177

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The practical deployment of massive multiple-input multiple-output (MIMO) in future fifth generation (5G) wireless communication systems is challenging due to its high hardware cost and power consumption. One promising solution to address this challenge is to adopt the low-resolution analogto-digital converter (ADC) architecture. However, the practical implementation of such architecture is challenging due to the required complex signal processing to compensate the coarse quantization caused by low-resolution ADCs. Therefore, few high-resolution ADCs are reserved in the recently proposed mixed-ADC architecture to enable low-complexity transceiver algorithms. In contrast to previous works over Rayleigh fading channels, we investigate the performance of mixed-ADC massive MIMO systems over the Rician fading channel, which is more general for the 5G scenarios like Internet of Things (IoT).Specially, novel closed-form approximate expressions for the uplink achievable rate are derived for both cases of perfect and imperfect channel state information (CSI). With the increasing Rician K-factor, the derived results show that the achievable rate will converge to a fixed value. We also obtain the powerscaling law that the transmit power of each user can be scaled down proportionally to the inverse of the number of base station (BS) antennas for both perfect and imperfect CSI. Moreover, we reveal the tradeoff between the achievable rate and energy efficiency with respect to key system parameters including the quantization bits, number of BS antennas, Rician K-factor, user transmit power, and CSI quality.Finally, numerical results are provided to show that the mixed-ADC architecture can achieve a better energy-rate trade-off compared with the ideal infinite-resolution and low-resolution ADC architectures. Achievable rate, mixed-ADC receiver, massive MIMO, Rician fading channels. Index Terms

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“…Here, the following three cases considered in Fig. 2 are investigated: 1)M 0 = obtained by the analytical expression (23). As expected, the sum rate approach a fixed value as K → ∞.…”

Section: A Achievable Ratementioning

confidence: 68%

Performance Analysis of Mixed-ADC Massive MIMO Systems Over Rician Fading Channels

Zhang

Dai

et al. 2017

IEEE J. Select. Areas Commun.

266

177

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“…The authors in [35] analyzed the joint impact of HIs and ICSI on the outage performance of point-to-point MIMO systems with SIC detections. In [36], the authors studied the performance of a multiuser communication system in rank-1 Rician fading channels, assumed both ICSI and transceiver HIs. The performance evaluation of orthogonal frequency division multiplexing with index modulation (OFDM-IM) under channel estimation error and HIs was investigated in [37].…”

Section: B Motivations and Related Workmentioning

confidence: 99%

“…Similarly, (38) is a constant, which is irrelative toλ SR n and λ R n D . Substituting (38) into 23, we can obtain (36).…”

Section: ) Diversity Ordermentioning

confidence: 99%

Joint Impact of Hardware Impairments and Imperfect Channel State Information on Multi-Relay Networks

Liu

et al. 2019

IEEE Access

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In this paper, we investigate the performance of dual-hop (DH) decode-and-forward (DF) multi-relay networks, for which two practical deleterious factors are taken into account, namely hardware impairments (HIs) and imperfect channel state information (ICSI). The communication between the source and the destination is realized with the aid of DF multi-relays, where both hops are assumed to be independent but non-identically distributed α-µ fading. Aiming at improving the system performance, three representative relay selection strategies are considered, in which the best relay is selected according to the link quality of source-to-relay and/or relay-to-destination. To characterize the performance of the proposed strategies, two key performance metrics, namely outage probability (OP) and ergodic capacity (EC), are analyzed insightfully. We first derive closed-form expressions for both exact and asymptotic OPs. Utilizing the derived results, diversity orders achieved at the destinations are obtained. We demonstrate that the OPs of considered networks are limited by HIs and ICSI, and the diversity orders are zeros due to the presence of ICSI. Then, we study the ECs of the proposed relay selection schemes, and upper bounds for the EC and asymptotic expressions for the EC in the high signal-to-noise ratio (SNR) regime are derived. To obtain more insights, the affine expansions for the EC are involved by two metrics of high-SNR slope and high-SNR power offset. It is shown that there are rate ceilings for the EC due to HIs and ICSI, which result in zero high-SNR slopes and finite high-SNR power offsets. INDEX TERMS α − µ fading channels, hardware impairments, imperfect CSI, relay selection. I. INTRODUCTION A. BACKGROUND Cooperative communication has been identified as one of the core technologies in the current and future wireless communication networks [1]. With the aid of relays, we can potentially extend the coverage of wireless networks, improve quality of service (QoS) and reduce energy consumption [2]. For these reasons, it thus has attracted considerable interests from both The associate editor coordinating the review of this manuscript and approving it for publication was Rui Wang.

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“…Yet, according to (5) and (6), we can easily extend it to the general scenario of order T max . Doing so, (28) becomes…”

Section: B Massive Mimo Deploymentmentioning

confidence: 99%

“…channel fading conditions in order to straightforwardly extract useful outcomes. 5 For realistic imperfect and/or delayed CSI conditions, outage probability reaches to a certain non-zero performance floor in high SNR regions [28], [29]. 4.…”

Section: B Massive Mimo Deploymentmentioning

confidence: 99%

All Cognitive MIMO: New Multiuser Detection Approach With Different Priorities

Miridakis

Tsiftsis

Vergados

et al. 2018

IEEE Trans. Wireless Commun.

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A new detection scheme for multiuser multiple-input multiple-output (MIMO) systems is analytically presented. In particular, the transmitting users are being categorized in two distinct priority service groups, while they communicate directly with a multi-antenna receiver. The linear zero-forcing scheme is applied in two consecutive detection stages upon the signal reception. In the first stage, the signals of one service group are detected, followed by the second stage including the corresponding detection of the remaining signals. An appropriate switching scheme based on specific transmission quality requirements is utilized prior to the detection so as to allocate the signals of a given service group to the suitable detection stage. The objective is the enhancement of the reception quality for both service groups.The proposed approach can be implemented directly in cognitive radio communication assigning the secondary users to the appropriate service group. The exact outage probability of the considered system is derived in closed form. The special case of massive MIMO is further studied yielding some useful engineering outcomes; the effective channel coherence time and a certain optimality condition defining both the transmission quality and effective number of independent transmissions. Index TermsN. I. Miridakis is with the Cognitive radio, imperfect channel estimation, massive MIMO, multiuser detection, outage probability, spatial multiplexing.

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Distributed Spatial Multiplexing Systems With Hardware Impairments and Imperfect Channel Estimation Under Rank-1 Rician Fading Channels

Cited by 22 publications

References 54 publications

Performance Analysis of Mixed-ADC Massive MIMO Systems Over Rician Fading Channels

Performance Analysis of Mixed-ADC Massive MIMO Systems Over Rician Fading Channels

Joint Impact of Hardware Impairments and Imperfect Channel State Information on Multi-Relay Networks

All Cognitive MIMO: New Multiuser Detection Approach With Different Priorities

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