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| | | Description: |  | V poslednite godini sme svideteli na burno razvitie na mobilnite radiokomunikacionni mrezhi i na tehnite uslugi. Tezi mrezhi se otlichavat ot komunikacionnite uslugi, predlagani ot stacionarnite komunikacionni mrezhi, s dve osnovni harakteristiki. Pyrvo, osiguriavat vryzkata s abonata pri negovata neprekysnato uvelichavashtata se mobilnost (v sgradite, v kolata, v kyshti, v rabotata, sred prirodata). Vtoro, tendenciata na razvitieto e nasochena kym izgrazhdaneto na globalna komunikacionna mrezha, koiato shte kombinira osnovnite uslugi za govorna komunikacia i komunikacia s danni s uslugite na obshtestvenata telefonna mrezha, chrez koeto shte se osiguri svetovno pokritie i shte se predlozhat uslugi, nezavisimo ot miastoto i vremeto.
Kombinaciata na tezi dve harakteristiki na mobilnite komunikacionni mrezhi e osnova za neprekysnato narastvashtite zaiavki za osiguriavane na mobilni uslugi. Tezi zaiavki imat iarko izrazen eksponencialen harakter na narastvane na broia na mobilnite potrebiteli (ili na kletychnite mrezhi, bezshnurovi telefoni, tyrseshti sistemi ili na naj-novite mobilni spytnikovi mrezhi). Tendenciata e da se predlagat ne samo mobilni komunikacionni uslugi, no i preminavaneto ot govorna komunikacia kym visokoskorosten prenos na danni i multimedijni produkti.
Avtorite na tazi kniga niamaha za cel podrobno da informirat chitatelite za vsichki syshtestvuvashti mobilni radiokomunikacionni mrezhi po celia sviat. Knigata ima za cel da predostavi informacia za osnovnite principi na rabotata na mobilnite radiokomunikacionni mrezhi, pri koeto po-podrobno da informira za perspektivnite sistemi na mobilnite radio komunikacii. Knigata e razdelena na deset osnovni glavi, ot koito vsiaka predstavliava zavyrshena chast. V kraia na knigata e napraven pregled na izpolzvanite sykrashtenia, poniatia i simvoli i spisyk na izpolzvanata literatura.
Knigata e prednaznachena za shirok kryg specialisti i studenti v elektrotehnicheskite fakulteti. Nezavisimo, che v neia e izpolzvan prost matematicheski aparat, cheteneto j iziskva osnovni poznania po teoria na signalite, razprostranenie na radiovylnite i modulaciite. Povecheto materiali za napisvane na knigata avtorite poluchiha pri uchastieto si v mezhdunarodnite proekti TEMPUS - Telecomnet i TEMPUS - Distancionno obuchenie v universitetite UPC Barcelona i Politecnico di Torino, kakto i vyv firmite Alcatel Shtutgard, Siemens SWH Viena i tehnite klonove v Slovakia.
Za zabelezhkite i syvetite pri obrabotkata na materiala iskame da blagodarim na recenzentite prof. inzh. Florian Makan, PhD., prof. inzh. Dushan Livicki, PhD. i na kolegite ot katedrite, koito imaha tyrpenieto da prochetat publikaciata. |
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| Frequently Asked Questions: |
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What is BALKANATOLIA.com?
BALKANATOLIA.com is a shop for Bulgarian music, films
and books in Bulgarian in Internet. Here you can find
up-to-date information on the new titles and buy the
products you want.
Are you delivering worldwide?
Yes, we are selling both within Bulgaria and abroad.
No matter where you are you can buy the products you
want.
Why are the prices both in USD and BGN?
The prices are in BGN and are converted in USD at the
offical currency rate of the day when the order is shipped
abroad. The price of the products is the same no matter
what currency you see on the screen.
How can you pay for the order?
For Bulgaria the orders are paid by cash on delivery.
Orders abroad can be paid by credit cards (Visa and
MasterCard), Western Union and MoneyGram transfers or
bank transfer. For some countries we support transfer
through postal money order.
Are credit card payments secure?
Credit card payments are processed through PayPal.com
and 2checkout.com to ensure 100 safety in transfers.
Are all the products available in stock?
We offer over 5000 titles books, music and films.
That is why we have in stock only the best selling products
as well as the newest titles from each category. The
rest of the products are ordered on demand but this
in general does not impact on our 48-hour time limit
for shipment.
What is the price for delivery?
The price for delivery depends on the destination and
number of products ordered. For Sofia the price is 1.80
BGN irrespective of the number of products ordered,
for the rest of Bulgaria it is between 1.20 and 3.90
BGN per product depending on the number of products
ordered.
The price for delivery abroad is from 6.80 USD to 9.40
USD per product depending on the number of products
ordered. When you place an order, write down your name
and password and you will see the price for delivery
when the final price is calculated.
How long does delivery take?
Delivery times vary depending on the destination. It
is 2 days for Sofia, and a week for the rest of Bulgaria.
The delivery time outside Bulgaria ranges from 1 to
4 weeks depending on the destination. The orders are
shipped within 2 working days after confirmation of
their payment. If you want express delivery of your
order within 2 or 3 days by DHL or UPS please contact
us for a price quote through email: .
How are the ordered products shipped?
The orders for Sofia are delivered to you by courier.
The orders for Bulgaria are sent through COD by Bulgarian
Posts. The orders abroad are delivered through postal
services with registered mail.
How to order?
To order a product you should be registered in the website
(through the [ Registration
] button from the above menu). Afterwards select the
product you want and click on the add
to cart >> button for the format you prefer:
compact disc, audio cassette, DVD or video CD.
Why are some texts and descriptions in Bulgarian with Latin script?
Products such as books and films are in Bulgarian and are targetted mainly at Bulgarians.
To be able to read the website without a Cyrillic font installed on your computer, the description of these products in the English version of the website is in Latin script.
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