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115 Threads found on edaboard.com: Uplink
i have many problem with this paper(Design and Analysis of Microstrip Antenna Arrays for Meteorological Nano-Satellites for UHF uplink) i simulate this paper with a new substrate (tmm4) but my radiation patterns are not correct i have this problem with tmm6 too i can not reach to true responses133132133133
i have many problem with this paper(Design and Analysis of Microstrip Antenna Arrays for Meteorological Nano-Satellites for UHF uplink) i simulate this paper with a new substrate (tmm4) but my radiation patterns are not correct i have this problem with tmm6 too i can not reach to true responses133086133085
i have many problem with this paper(Design and Analysis of Microstrip Antenna Arrays for Meteorological Nano-Satellites for UHF uplink) i simulate this paper with a new substrate (tmm4) but my radiation patterns are not correct i have this problem with tmm6 too i can not reach to true responses plz help me
I want to understand the difference between TDD and FDD PRACH procedure for UMTS. As in FDD the power estimation (to be sent in uplink) is based on transmission on downlink frequency, while in TDD these both are on same frequency.
Hi LTE FDD will require two frequency spectrum allocation, one for UL (uplink) and another for DL(downlink) separated by a few tenths of MHz. Does RB allocation by eNODEb have to be symmetric? For example, if my UE is doing Youtube which is heavily DL, can it be allocated, for e.g. 50RB (10MHz) for DL and only 1RB for UL for example (sync
HI to all please help me! what is uplink & downlink and out put power of 3g,wifi,satelitte phones,cordless phone and wireless caneras? thanks.
hi i am doing project on "uplink Interference Management for Coexisting MIMO Femtocell and Macrocell Networks:An Interference Alignment Approach" but I'm lacking in the initial matlab codes for simulation, which stops me from going on. Could you provide me with some matlab codes.. or any material regarding this topic .. thanks in advance..
Hello, I need your suggestion on the next: For a cubesat project I was told to suggest an RF transceiver for the communications system. The specs are: 1. The uplink should be around 146MHz and the downlink around 433MHz. 2. To match the already purchased 9600kbps FSK modem, the transmitter oscillator must use a crystal and a varactor
trying to find matlab code for sage algorithm for time and frequency synchronization of uplink OFDMA system. any help will be appreciated thank you
mat lab code for frequency synchronization in uplink OFDMA using sage algorithim
you have several different uplink/downlink sites. One's uplink could be interpreted as a downlinked data stream if they were not different frequencies
I am a PHD candiate student , now try to implement LTE uplink scheduling algorithm using MATLAB Is any one can help me find those resource prgrams so that I can work on it ???
Hi everybody, I have to do some research on GSM Relay. And now i am in the part of standards and regulations. My questions is : Are there any rules(regulations) between the uplink transmission (Cellular to BTS) and the downlink transmission (BTS to Cellular) ? (Like limits of power transmission, time delay etc..). In fact, in some active repe
Choose for example a X-Band LNA followed by some transmission line, and maybe a down-converter to L-Band. There are sometimes also bandpass filter to reject nearby uplink transmit signals. I can find fine LNA kit out there claiming +/- 1dB gain variation across a passband around 700MHz wide. Some have a second specification, typically 0.5dB ov
dear all, i need help on how to get a code on matlab about uplink and downlink pathloss!! i need to make a function for the link budget and then call it for different propagation models!!! For LTE, the basic RLB equation can be written as follows (in units of dB): PathLos = TxPower + TxGains - TxLosses - RequiredSINR + RxGains - RxLosses - RxNoise
hi, i am looking for a matlab code for radio linket budget in both uplink and downlink!!! i am confused about the parameters so i would love some help!!! tnx!!!!
hi i have a project to do on matlab and i have to get a function for radio link budget for both uplink and downlink in order to use it after in calculations with proragation models! my problem is that i dont know how to put the parameters on the code and if i have to give the values they get !! please if anyone has done something similar it would h
What are some of the advantages and disadvantages of TDD vs FDD? Here is what I can think of: TDD advantages: utilizes same channel when channel is not varying quickly (CSI can be estimated and is known for TDD on both ends) in-band filter is simpler (does not change in varying datarate scenarios between the uplink and downlink) TDD disadva
well, lets say your uplink to the satellite was at 10.000 Ghz at 10 watts, and your downlink from the satellite was at 10.000 GHz and -120 dBm at the receiver. And the tranmitter and receiver used the same antenna. Do you forsee any potential problem with that?
Hi all, Part of an advanced graduate project, I have implemented LTE uplink physical layer processing blocks (CRC, turbo coding, scrambling, modulation, etc..) for both transmitter and receiver using C/C++. Now I want to verify it on a DSP board. I am thinking TMS320C6713. The reason for selecting TMS320C6713 is because I am new to DSP programmin