Energy Efficiency of MIMO systems
نویسنده
چکیده
A multiple-input multiple-output (MIMO) system consists of multiple antennas at the receiver and transmitter. These multiple antennas can be used to improve the performance of the system through spatial diversity or increase the data rates by spatial multiplexing. One can also use some of the antennas for diversity and some for spatial multiplexing. The number used for diversity and spatial multiplexing depends on the application. Zheng and Tse [1] provide an optimal trade-off curve for multiplexing and diversity in the high SNR regime.
منابع مشابه
Energy efficiency comparison between distributed and co-located MIMO systems
Energy efficiency (EE) is becoming more and more important in future wireless communications because of limited battery power in mobile terminals. In this paper, we compare EE of the distributed MIMO (D-MIMO) and co-located MIMO (C-MIMO) in uplink systems. Taking into account both circuit and transmit power, we derive an analytical expression for EE of D-MIMO and C-MIMO systems in a composite R...
متن کاملEnergy efficiency evaluation of alternative MIMO - based sensor networks
Low-cost and low-power sensor nodes forming Wireless Sensor Networks (WSNs) have become suitable for a wide range of applications during recent years. These networks, due to their special functional characteristics, demand the implementation of energy-aware techniques in all layers. Recently a MIMO – based structure has been proposed to offer enhanced energy savings in WSNs under certain circum...
متن کاملEnergy Efficient Maximization in OFDM Multi-User MIMO Systems
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...
متن کاملMassive Mimo: Channel Measurements and Their Models & Forthcoming Aspects
Massive MIMO is also known as very-large MIMO (VLMIMO) and large scale antenna systems (LSAS), Hyper MIMO (HMIMO), Full dimension MIMO (FDMIMO) is advance techniques that potentially can offered the large network capacities in multi-user circumstances. With a massive MIMO system, we consider the case where a base station equipped with a large number of antennas elements instantaneously serves t...
متن کاملEEOPA Algorithm for MIMO-OFDM with Energy-Efficiency and QOS Constraints
Wireless communications is, by any measure, the fastest growing segment of the communications industry. As such, it has captured the attention of the media and the imagination of the public. Cellular systems have experienced exponential growth over the last decade and there are currently around two billion users worldwide. Indeed, cellular phones have become a critical business tool and part of...
متن کاملEnergy Efficiency and Asymptotic Performance Evaluation of Beamforming Structures in Doubly Massive MIMO mmWave Systems
Future cellular systems based on the use of millimeter waves will heavily rely on the use of antenna arrays both at the transmitter and at the receiver. For complexity reasons and energy consumption issues, fully digital precoding and postcoding structures may turn out to be unfeasible, and thus suboptimal structures, making use of simplified hardware and a limited number of RF chains, have bee...
متن کامل