28 Questions 115 Answers 0 Followers
Questions related from Aamir Habib
What is channel hardening in Massive MIMO?. Please explain in details? I need to understand why it is called hardening. Also why does this phenomenon happen. what effect does it have on system.
15 January 2017 5,255 8 View
Channel estimation time for fdd is longer than tdd due to non reciprocity of channels in fdd. Why then does this time depends on number of antennas and independent of antennas for tdd.
26 November 2016 1,554 6 View
What is the SOMA(Semi orthogonal multiple access) considered for 4.5 G wireless networks.
21 February 2015 8,758 6 View
Solving the capacity and data rate challenges with network densification could be very expensive in terms of equipment, maintenance, and operations in future 5G. In LTE and LTE-A most of the...
10 January 2015 2,236 3 View
With respect to future 5G networks which quantity would be more important with respect to the end user service. Is it Quality of Service or Quality of Experience?
10 January 2015 1,198 1 View
SystemVue is a good software for physical layer design and analysis of advanced communications systems. I was wondering if results of this software are better or comparable to simulations with...
02 September 2014 8,571 1 View
What benefits can we get if we select an antenna on the output of convolution coding and transmit the data on the selected antenna? This scheme is similar to a new scheme called spatial...
22 May 2014 2,014 3 View
What advantages we can get if we use a combination of a multi-polarized array of antennas and use spatial modulation?
22 May 2014 4,666 1 View
Can anyone tell me the methods of converting water in the air into water which can be used for drinking.
05 May 2014 4,628 12 View
QuaDRiGa (QUAsi Deterministic Radio channel GenerAtor). Is it possible to apply QuaDRiGa channel models for simulating massive MIMO.
31 March 2014 5,482 3 View
Until now nothing specific is formally defined for 5G requirement, I think it will be highly probable that the system bandwidth will get extended to at least a couple of hundreds MHz. There will...
21 March 2014 9,435 2 View
Can wavelet transforms be applied to adaptive filter applications like linear prediction, echo cancellation, equalization, channel estimation etc?
19 March 2014 8,015 3 View
The pilot resources within a cell are orthogonal, but pilot signals suffer from inter-cell interference in multicellular systems. Could anyone suggest a model to reduce pilot contamination?
01 March 2014 8,679 2 View
What could be the advantage of using carbon nano-tubes for the design of small radiators and receptors. Can this be used with very high frequencies? How much bandwidth can they support at the...
16 February 2014 1,640 1 View
Can it be used to focus radiation from antenna to a specific direction? So far I have only found a paper regarding the application of this. Electromagnetic Lens-focusing Antenna Enabled Massive MIMO
13 February 2014 4,021 4 View
What would be the channel models for future collocated massive MIMO systems. Should it be the same old MIMO channel models with correlation matrix or something else.
10 February 2014 4,939 1 View
How could be the precoder matrix be designed for spatial modulation transmitter and receiver.
09 February 2014 6,685 1 View
Antenna subset selection is a techniques in which we have less number of RF chains compared to the total number of antennas. Depending on the channel statistics best possible antennas are selected...
09 February 2014 10,033 1 View
Done via a single transmit antenna (like in spatial modulation) with minimum number of rx antennas.
09 February 2014 8,147 1 View
Please explain NOMA and its potential use in 5G networks.
26 January 2014 2,403 19 View
Can someone explain the advantages of using FBMC (Filter Bank Multicarrier) over OFDMA?
26 January 2014 1,209 4 View
What do you think the killer application will be for 60GHz and frequencies above that? Wireless uncompressed video? Wireless Gigabit Ethernet for general networking around e.g. a conference...
22 January 2014 4,656 1 View
Would it be easier to implement this on handheld devices with augmentation of very large MIMO techniques?
18 January 2014 7,266 7 View
Before selecting the best antennas in MIMO, the channels from all antennas are measured/estimated. Definitely if the number of antennas increase with comparatively less number of RF chains, the...
18 January 2014 742 1 View
Currently the USRP I am using for my work can be equipped with 2 RF daughter boards so that you can connect 2 antennas. How can I extend this to more antennas? Can I use the technique of antenna...
16 January 2014 7,899 3 View
I need some MATLAB code to demodulate the data I have which is BPSK modulated. MAC layer protocol of this data is AX25 UI. BPSK baud rate is 1200bps. I have a good quality frame of this data in a...
07 January 2014 3,112 4 View
WiFi signals, GSM, and ultrasound signals can be used for indoor LBS. Is it possible to use LED's already installed in an indoor environment for localization purposes. What could be the various...
03 November 2013 5,897 4 View
How to communicate between robots cooperating with each other to perform a specific task?
23 September 2013 5,730 3 View
