Mankind has always been fascinated by nature and has striven to understand its functioning.What lies beyond the stars,what hides inside atoms,how to reach the stars,how to tap the vast energy inside the atoms,what is ...Mankind has always been fascinated by nature and has striven to understand its functioning.What lies beyond the stars,what hides inside atoms,how to reach the stars,how to tap the vast energy inside the atoms,what is the correlation between space and time and how to exploit it-these are only a sample of the infinite questions to which we seek answers.In this editorial we explore some of the pressing issues that we are currently trying to address.展开更多
Detecting the presence of a valid signal is an important task of a telecommunication receiver.When the receiver is unable to detect the presence of a valid signal,due to noise and fading,it is referred to as an erasur...Detecting the presence of a valid signal is an important task of a telecommunication receiver.When the receiver is unable to detect the presence of a valid signal,due to noise and fading,it is referred to as an erasure.This work deals with the probability of erasure computation for orthogonal frequency division multiplexed(OFDM)signals used by multiple input multiple output(MIMO)systems.The theoretical results are validated by computer simulations.OFDM is widely used in present day wireless communication systems due to its ability to mitigate intersymbol interference(ISI)caused by frequency selective fading channels.MIMO systems offer the advantage of spatial multiplexing,resulting in increased bit-rate,which is the main requirement of the recent wireless standards like 5G and beyond.展开更多
Welcome to the inaugral issue of Semiconductor Science and Information Devices.It is expected that future telecommunication networks(5G and beyond)will host not only humans but also machines in the form of Internet of...Welcome to the inaugral issue of Semiconductor Science and Information Devices.It is expected that future telecommunication networks(5G and beyond)will host not only humans but also machines in the form of Internet of Things(IoT).Therefore,there is a growing demand for increased data rates,of the order of tens of gigabits per second for each device for streaming 8K video,latencies of less than one millisecond for autonomous driving and remote surgeries,increased device density over a square kilometer,millimeter wave frequencies(carrier frequencies in excess of 100 gigahertz)and last but not the least,having a large number of antennas on each device,in the form of massive multiple input and multiple output(MIMO)for the purpose of spatial multiplexing and increased data-rates.展开更多
文摘Mankind has always been fascinated by nature and has striven to understand its functioning.What lies beyond the stars,what hides inside atoms,how to reach the stars,how to tap the vast energy inside the atoms,what is the correlation between space and time and how to exploit it-these are only a sample of the infinite questions to which we seek answers.In this editorial we explore some of the pressing issues that we are currently trying to address.
文摘Detecting the presence of a valid signal is an important task of a telecommunication receiver.When the receiver is unable to detect the presence of a valid signal,due to noise and fading,it is referred to as an erasure.This work deals with the probability of erasure computation for orthogonal frequency division multiplexed(OFDM)signals used by multiple input multiple output(MIMO)systems.The theoretical results are validated by computer simulations.OFDM is widely used in present day wireless communication systems due to its ability to mitigate intersymbol interference(ISI)caused by frequency selective fading channels.MIMO systems offer the advantage of spatial multiplexing,resulting in increased bit-rate,which is the main requirement of the recent wireless standards like 5G and beyond.
文摘Welcome to the inaugral issue of Semiconductor Science and Information Devices.It is expected that future telecommunication networks(5G and beyond)will host not only humans but also machines in the form of Internet of Things(IoT).Therefore,there is a growing demand for increased data rates,of the order of tens of gigabits per second for each device for streaming 8K video,latencies of less than one millisecond for autonomous driving and remote surgeries,increased device density over a square kilometer,millimeter wave frequencies(carrier frequencies in excess of 100 gigahertz)and last but not the least,having a large number of antennas on each device,in the form of massive multiple input and multiple output(MIMO)for the purpose of spatial multiplexing and increased data-rates.
