Wireless communications
Citations
3,309 citations
Cites background from "Wireless communications"
...Tractable analysis can sometimes be achieved for a fixed user with a small number of interfering base stations, for example by considering the “worst-case” user location – the cell corner – and finding the signal-to-interference-plus-noise ratio (SINR) [12], [13]....
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2,843 citations
Cites background from "Wireless communications"
...wherePt is the transmission power, and β is an environmentdependent constant normally between 2–5 [23]....
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2,289 citations
Cites background from "Wireless communications"
...To be specific, wireless channels differ from the wired counterparts in the following key aspects [61]: 1) Due to atmospheric ducting, reflection and refraction from scattering objects in the environment (e....
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2,154 citations
Cites background from "Wireless communications"
...If the bandwidth-delay spread product of the channel satisfies , the channel is generally said to be frequency selective [19]....
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2,084 citations
Additional excerpts
...Categories and Subject Descriptors C.2.1 [Computer Communication Networks]: Network Architecture and Design—Wireless communication General Terms: Algorithms, Design, Experimentation, Performance Keywords: Full Duplex, Interference Cancellation, Non-linear Cancellation...
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References
13,706 citations
"Wireless communications" refers background or methods in this paper
...The signal envelope in this case can be shown to have a Rician distribution [9], given by...
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...Capacity for time-varying channels under assumptions other than these three are discussed in [8, 9]....
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...The joint pdf of z and ż for Rician fading was derived in [9] and can also be found in [11]....
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...Comparison of the ray tracing method with empirical data shows it to accurately model received signal power in rural areas [10], along city streets where both the transmitter and receiver are close to the ground [8, 7, 10], or in indoor environments with appropriately adjusted diffraction coefficients [9]....
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...This model has been used to characterize the mechanism by which signals are diffracted around street corners, which can result in path loss exceeding 100 dB for some incident angles on the wedge [9, 37, 38, 39]....
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11,592 citations
"Wireless communications" refers background or methods in this paper
...Irreducible error floors due to ISI are often obtained by simulation, which can easily incorporate different channel models, modulation formats, and symbol sequence characteristics [26, 28, 27, 22, 23]....
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...Measurements for the partition loss at different frequencies for different partition types can be found in [1, 23, 24, 19, 25], and Table 2....
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...The value for γ0 cannot be solved for in closed form for typical continuous pdfs p(γ) and thus must be found numerically [23]....
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...A typical model assumes the channel is composed of several scattering centers which generate the multipath [23, 24]....
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...In [23] the Jakes model is extended to produce spatio-temporal characteristics using the ideas of [25, 26, 27]....
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9,008 citations
6,469 citations
"Wireless communications" refers background or methods in this paper
...Measurements for the partition loss at different frequencies for different partition types can be found in [1, 23, 24, 19, 25], and Table 2....
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...Diffraction results from many phenomena, including the curved surface of the earth, hilly or irregular terrain, building edges, or obstructions blocking the LOS path between the transmitter and receiver [16, 3, 1]....
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...For these environments computer-aided modeling tools are available to predict signal propagation characteristics [1]....
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...This attenuation loss will vary widely, depending on the material and depth of the object [1, 46]....
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...This happens when the nth multipath component results from a reflection cluster with a large number of nonresolvable multipath components [1]....
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3,842 citations
"Wireless communications" refers background or methods in this paper
...Irreducible error floors due to ISI are often obtained by simulation, which can easily incorporate different channel models, modulation formats, and symbol sequence characteristics [26, 28, 27, 22, 23]....
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...Path loss exponents at higher frequencies tend to be higher [31, 26, 25, 27] while path loss exponents at higher antenna heights tend to be lower [34]....
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...Building penetration loss on the ground floor typically range from 8-20 dB for 900 MHz to 2 GHz [27, 28, 3]....
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...Different models for such 3-D channels have been proposed in [25, 26, 27]....
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...The excitement in this area stems from the breakthrough results in [28, 27, 29] indicating that the capacity of a fading channel with multiple inputs and outputs (a MIMO channel) is M times larger then the channel capacity without multiple antennas, where M = min(Mt, Mr) for Mt the number of transmit antennas and Mr the number of receive antennas....
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