منابع مشابه
On Energy Efficient Uplink Multi-User MIMO with Shared LNA Control
Implementation cost and power consumption are two important considerations in modern wireless communications, particularly in large-scale multi-antenna systems where the number of individual radio-frequency (RF) chains may be significantly larger than before. In this work, we propose to deploy a single low-noise amplifier (LNA) on the uplink multipleinput-multiple-output (MIMO) receiver to cove...
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The optimal energy-efficient design of uplink (UL) for multi-user (MU) multiple-input multiple-output (MIMO) system in a single cell environment is addressed in this paper. Throughput per Joule is the unit for energy efficiency. Radio frequency (RF) transmission power and device electronic circuit power are taken into consideration. The energy efficiency (EE) capacity for UL MU-MIMO is defined ...
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Energy efficiency is important for mobile devices because battery technology development has not kept up with the growing demand of ubiquitous broadband communications. This paper considered optimal energy-efficient design for uplink (UL) MUMIMO in a single cell environment. We first assume fixed amount of circuit power in all user. We show that some antennas should not be used even when their ...
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The energy efficiency has become more important in MIMO wireless communication system in recent days. The antennas at each end of the communications circuit are combined to minimize errors and optimize data speed. In Multiple Input Multiple Output Time Division Duplexing (MIMO TDD), by assuming reciprocity property the downlink transmission is based on uplink channel estimation. When more uplin...
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In this paper, we evaluate the performance of filter bank-based multi-carrier with offset quadrature amplitude modulation (FBMC/OQAM) for the multi-user multiple-input multiple-output (MIMO) uplink in the presence of timing and frequency misalignments. In such a scenario, multiple access is achieved by assigning groups of sub-carriers to user nodes. The nodes are equipped with multiple antennas...
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ژورنال
عنوان ژورنال: IEEE Transactions on Wireless Communications
سال: 2013
ISSN: 1536-1276
DOI: 10.1109/twc.2013.040213.120942