Wideband communication
Wideband communication uses – as the name states – a wider portion of the spectrum. This has some advantages and disadvantages:
- Wideband communication allows for a higher bandwidth and therefore for a faster communication
- Wideband communication allows for spreading the signal to encrypt it (See: Direct Sequence Spread Spectrum and its derivates)
- wideband communication allows for notching out narrow noise sources in the spectrum (See OFDM)
- Wideband communication puts high demands on the linearity of filters (also the respective filter bandwidths are higher)
- It’s harder to send and detect wideband signals (You need a high Signal to Noise ratio) as the energy of the signal is distributed across the width of the spectrum which makes the signal weaker the wider it gets (transmitting on a given power level)
- Wideband communication is almost exclusively done in higher frequencies (I’d say 433MHz+) as it’s easier to design integrated circuits which have wider filters
- Common modulation techniques are OFDM, GMSK, N-PSK and QAM-N in combination with frequency hopping
- Examples of wideband communication are wireless networks: Wifi, LTE, HSPA
Narrowband communication
Narrowband communication uses a narrow bandwidth.
- Narrowband signals are used in a slower form of communication where mainly voice or slow datastreams have to be transmitted
- Narrowband signals usually have a far greater range of reception as narrower filters can be used and therefore cancel out unwanted wideband noise. The transmitted energy also concentrates on a smaller portion of the spectrum.
- Common uses are FM radio, AM radio, satellite downlinks, morse code (CW), GPS signals and NOAA weather transmissions.
- Common modulation techniques are AM, FM, SSB, BPSK and CW
Often IC manufacturers do focus on narrowband communication because often you need to flip a switch and propagate the change in signal through the air which does not need a high bandwidth. If you however try to send a x264 packed HD picture with 24MBit over the air you most certainly need a high bandwidth to transmit it in realtime. But according to the frequency usage plans you need to use a higher frequency band to be allowed to use a certain bandwidth (or power level). This is why wideband communication is almost exclusive to hardware used for 1 GHz+ operation.
I’m now not certain the place you’re getting your info, however great topic. I must spend some time finding out more or figuring out more. Thanks for magnificent information I was looking for this information for my mission.
hey there and thank you for your information – I have definitely picked up something new from right here. I did however expertise a few technical issues using this website, since I experienced to reload the website many times previous to I could get it to load correctly. I had been wondering if your web hosting is OK? Not that I am complaining, but slow loading instances times will often affect your placement in google and could damage your high quality score if advertising and marketing with Adwords. Well I am adding this RSS to my email and can look out for much more of your respective intriguing content. Ensure that you update this again soon..
You can certainly see your expertise in the paintings you write. The world hopes for more passionate writers like you who aren’t afraid to mention how they believe. At all times go after your heart.
Great blog! Is your theme custom made or did you download it from somewhere? A theme like yours with a few simple adjustements would really make my blog shine. Please let me know where you got your theme. Thanks
Throughout this awesome scheme of things you’ll get a B- with regard to effort and hard work. Where you lost me personally ended up being on all the details. As they say, the devil is in the details… And that could not be more accurate right here. Having said that, allow me inform you precisely what did do the job. Your text can be quite engaging and this is possibly why I am taking the effort in order to opine. I do not really make it a regular habit of doing that. Next, although I can easily see a leaps in reasoning you make, I am definitely not sure of exactly how you seem to connect the points that make the conclusion. For the moment I will, no doubt subscribe to your position but trust in the future you link your dots better.
“Amazing! This blog looks just like my old one! It’s on a completely different topic but it has pretty much the same layout and design. Wonderful choice of colors!”
Something else is that when looking for a good on the internet electronics store, look for web stores that are consistently updated, keeping up-to-date with the most recent products, the top deals, plus helpful information on products. This will ensure that you are doing business with a shop that really stays atop the competition and provides you what you should need to make educated, well-informed electronics buying. Thanks for the crucial tips I’ve learned from the blog.
OH come on 🙂
I am in fact pleased to read this website posts which contains lots of useful data, thanks for providing these information.
I feel this is one of the such a lot vital info for me.
And i am happy studying your article. But wanna observation on some general
things, The web site style is perfect, the articles is actually great : D.
Good job, cheers
I like what you guys are up too. Such intelligent work and reporting! Keep up the superb works guys I have incorporated you guys to my blogroll. I think it’ll improve the value of my site 🙂
Hello, you used to write magnificent, but the last few posts have been kinda boringK I miss your super writings. Past few posts are just a bit out of track! come on!
I have read so many content regarding the blogger lovers except
this paragraph is genuinely a pleasant paragraph, keep it
up.
Have you ever before had issues with your webhost?
I’m open for suggestions as my webhost is horrible right now.
Can you tell me what system are you making use of on this site?
If you want to grow your experience simply keep visiting this website
and be updated with the hottest information posted here.
I think this is one of the most important information for me.
And i am glad reading your article. But want to
remark on few general things, The website style is wonderful, the articles is really great : D.
Good job, cheers
Your mode of telling everything in this paragraph is truly pleasant, all
be able to without difficulty be aware of it, Thanks a lot.
xelmkoqqjq,This website truly has alll of the information and facts I wanted about this subject and didn?t know who to ask.
kwexczqbv,Thanks for ones marvelous posting! I actually enjoyed reading it, you will be a great author.I will always bookmark your blog and will jyqkkr,come back from now on. I want to encourage that you continue your great writing, have a nice afternoon!
Currently it seems like Movable Type is the best blogging platform
available right now. (from what I’ve read) Is that
what you’re using on your blog?
Hi there friends, nice article and good arguments commented here, I am really enjoying by these.
gphlmkdlkd,This website truly has alll of the information and facts I wanted about this subject and didn?t know who to ask.
wmbffglol Yeezy Boost 350,Thanks a lot for providing us with this recipe of Cranberry Brisket. I’ve been wanting to make this for a long time but I couldn’t find the right recipe. Thanks to your help here, I can now make this dish easily.
Thanks so much for giving everyone a very marvellous possiblity to read articles and blog posts from this site. It really is so great and packed with a good time for me and my office friends to search your web site nearly 3 times per week to see the latest secrets you have got. And indeed, I am also usually impressed with your gorgeous methods you serve. Certain 3 facts in this article are really the most suitable we have had.
Excellent article. I will be experiencing a few
of these issues as well..
zlgikrj,Definitely believe that which you said. Your favourite justification appeared to be on the net the simplest thing to remember of.
I have to voice my passion for your kindness supporting those people that should have assistance with your field. Your personal dedication to getting the solution throughout appears to be quite advantageous and has without exception permitted most people just like me to get to their goals. Your own warm and friendly instruction entails a whole lot a person like me and additionally to my colleagues. Warm regards; from all of us.
gtdomin Adidas Yeezy,Hi there, just wanted to say, I liked this article. It was helpful. Keep on posting!
diuzjapp,Hi there, just wanted to say, I liked this article. It was helpful. Keep on posting!
Hi, I hope you are well. I actually took pleasure in reading this blog.
I look forward to your next post.
Thank you for your insightful pointers and opinions, I can’t wait to try them out.
kjkffoyuxh,Hi there, just wanted to say, I liked this article. It was helpful. Keep on posting!
I precisely wished to say thanks once again. I’m not certain what I could possibly have sorted out without the entire opinions documented by you over my field. This has been a hard circumstance for me, but being able to see the very expert manner you handled that made me to cry over fulfillment. Now i am thankful for your support and as well , sincerely hope you recognize what a great job that you’re providing teaching other individuals through your web blog. I am certain you’ve never met all of us.
Thank you a lot for providing individuals with such a splendid possiblity to check tips from this web site. It is often so pleasant plus packed with a great time for me and my office co-workers to visit your website a minimum of 3 times per week to study the newest guides you have got. Of course, we’re usually impressed considering the splendid tips and hints you serve. Selected 2 areas in this post are essentially the very best I’ve had.
dabwfjwtaas,This website truly has alll of the information and facts I wanted about this subject and didn?t know who to ask.
Because the admin of this web site is working, no doubt very shortly it will be renowned, due to its feature contents.