Teletraffic Analysis of an Overlaid System Using CDMA and TDMA With Cell Coverage Area Restriction

Castaeda-Camacho, J.; Lara-Rodriguez, D.

doi:10.1109/tvt.2007.905616

Cited by 6 publications

(6 citation statements)

References 39 publications

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“…The resulting modulated signal emulates the signal radiated from the antenna to the environment. Knowing that any propagated electromagnetic signal is subjected to several inherent phenomena typical of this environment, this work considers four main phenomena such as multipath and slow fading, co-channel interference [5], and AWGN [4]. The black dotted box emulates the environment through which the radiated signal travels and where the effects previously mentioned are included.…”

Section: Optical and Wireless Transmission Schemesmentioning

confidence: 99%

“…(2) An discrete-event Monte Carlo simulation is carried out to evaluate the performance of the U1 user inside the coverage area. The central cell is surrounded by the nearest co-channel interfering bases (BS1 to BS6) [5]. Mathematically, the modulated signal is treated as follows [13,14]…”

Section: 𝑆𝐼𝑁𝑅 = 𝑃𝑟𝑥 𝑧 +𝐶𝐶𝐼mentioning

confidence: 99%

“…where z i is defined as the AWGN signal [4] with a standard deviation σ, and CCI is the additive co-channel interference signal [5]. Thus, CCI is modeled as…”

Section: 𝑆𝐼𝑁𝑅 = 𝑃𝑟𝑥 𝑧 +𝐶𝐶𝐼mentioning

confidence: 99%

“…Figure 1 shows a basic fiber-radio scheme where the data are transmitted from a central site (CS) through an optical link to the remote radio unit (RRU). The wireless medium (atmosphere) is mainly affected by fading channels, AWGN [4], and co-channel interference [5], among other impairments.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Digital Data Performance Transmission on a Fiber-Radio System

et al. 2023

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This work shows a set of numerical simulations to evaluate the digital data performance transmission for a fiber-radio system. For this goal, VPI Photonics software is used to simulate the transmission of a digital signal at a bit rate of 2.4 GHz through an optical link of 25 km of single-mode standard fiber (SM-SF). Whereas MATLAB software is utilized to emulate a wireless channel considering four main phenomena inherent to this channel, such as multipath and slow fading, co-channel interference, and additive white Gaussian noise (AWGN). The modeling carried out in MATLAB considers a user in movement within its coverage area cell. The constellation diagram, bit error rate (BER), and signal-to-interference-plus-noise ratio (SINR) statistical tests are used to evaluate the performance of this approach. This proposal finds potential applications in the field of cellular telephony, the Internet of Things (IoT), or any other communication system to evaluate the quality of the delivered signal to a user in motion within a particular coverage cell.

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Section: Optical and Wireless Transmission Schemesmentioning

confidence: 99%

Section: 𝑆𝐼𝑁𝑅 = 𝑃𝑟𝑥 𝑧 +𝐶𝐶𝐼mentioning

confidence: 99%

“…where z i is defined as the AWGN signal [4] with a standard deviation σ, and CCI is the additive co-channel interference signal [5]. Thus, CCI is modeled as…”

Section: 𝑆𝐼𝑁𝑅 = 𝑃𝑟𝑥 𝑧 +𝐶𝐶𝐼mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Digital Data Performance Transmission on a Fiber-Radio System

et al. 2023

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“…Any reduction in interference in CDMA and SDMA systems converts directly and linearly into increased capacity (Yu et al, 2004), (Chen et al, 2008). Multiple access schemes such as FDMA and TDMA increase their system capacity and spectrum efficiency by dividing the different network planning phases more clearly into individual parts to allow different frequencies to be used at different time moments (Castaeda & Lara, 2008). In CDMA systems, the same frequency is used simultaneously in adjacent cells and the interference level should be taken into account in the coverageplanning phase (Niemela & Lempiainen, 2003).…”

Section: Introductionmentioning

confidence: 99%