Multi-Media and Multi-Band Based Adaptation Layer Techniques for Underwater Sensor Networks
Applied Sciences, 2019 In the last few decades, underwater communication systems have been widely used for the development of navy, military, business, and safety applications, etc.
Delphin Raj K M +5 more
doaj +1 more source
Improving Energy Efficiency for IoT Communications in 5G Networks [PDF]
, 2017 Increase in number of Internet of Things (IoT) devices is quickly changing how mobile networks are being used by shifting more usage to uplink transmissions rather than downlink transmissions.
Su, Gary
core +1 more source
Simulation Analysis of Medium Access Techniques
, 2012 This paper presents comparison of Access Techniques used in Medium Access Control (MAC) protocol for Wireless Body Area Networks (WBANs). Comparison is performed between Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA ...
Israr, I. +4 more
core +1 more source
Detection and Recognition Method of Misfire for Chamber (Deep-Hole) Blasting Based on RFID
IEEE Access, 2019 Deep-hole blasting and chamber blasting technology are widely used in mining and large-scale earth-rock excavation or landfill projects, due to their advantages of high efficiency and low cost. However, their use is often accompanied by misfire accidents,
Liansheng Liu +5 more
doaj +1 more source
Why is CDMA the solution for mobile satellite communication [PDF]
It is demonstrated that spread spectrum Code Division Multiple Access (CDMA) systems provide an economically superior solution to satellite mobile communications by increasing the system maximum capacity with respect to single channel per carrier ...
Gilhousen, Klein S. +3 more
core +1 more source
ENHANCEMENT OF CODE DIVISION MULTIPLE ACCESS (CDMA) WITHIN THE GSM SYSTEM IN IRAQ
Mağallaẗ Al-kūfaẗ Al-handasiyyaẗDespite the widespread adoption of Global System for Mobile Communications (GSM) in Iraq, the network's capacity and performance limitations have become increasingly apparent, particularly in urban areas with high user density. Currently, LTE (4G) is the
Nabil Abdulwahab Abdulrazaq Baban
doaj +1 more source
Peak to average power ratio analysis for LTE systems
, 2010 The 3rd generation partnership project (3GPP) long term evolution (LTE) standard uses single carrier frequency division multiple access (SCFDMA) scheme for the uplink transmissions and orthogonal frequency division multiplexing access (OFDMA) in downlink.
Islam, Md. Saiful +2 more
core +1 more source
DDMA MIMO radar system for low, slow, and small target detection
The Journal of Engineering, 2019 The low, slow, and small (LSS) target detection has always been a problem for both ground-based and air-borne radar systems. The factors such as weak target reflection energy, ground clutter, and random Doppler component will have a severe impact on ...
Fawei Yang +3 more
doaj +1 more source
Comparison of FDMA and CDMA for second generation land-mobile satellite communications [PDF]
Code Division Multiple Access (CDMA) and Frequency Division Multiple Access (FDMA) (both analog and digital) systems capacities are compared on the basis of identical link availabilities and physical propagation models.
Lyons, R. G. +2 more
core +1 more source
Memory truncation and crosstalk cancellation for efficient Viterbi detection in FDMA systems
Journal of Telecommunications and Information Technology, 2001 In this paper, the design of optimal receive filter banks for frequency division multiple access (FDMA) over frequency selective channels is investigated.
Alfred Mertins
doaj +1 more source