Advices

What is bit loading algorithm?

What is bit loading algorithm?

Abstract. A new approach to loading for orthogonal frequency division multiplexing (OFDM) system is proposed, this bit-loading algorithm assigns bits to different subchannels in order to minimize the transmit energy.

How many bits are in a bin?

The number of bits encoded on each bin is between 2 and 15, depending on the signal to noise ratio (SNR) for that bin.

What is adaptive bit loading?

● In adaptive Bit-loading the number of bits that can be transmitted in each subcarrier is determined by the SNR on the subcarrier. □ According to Shannon’s theorem we should be able to get more bps/Hz using subcarriers that have higher SNR.

Is ADSL analog or digital?

ADSL is using an analog carrier to encode a digital signal. AN ADSL device includes a Modem (but a much faster and more complex one then the old dial-up ones) – the input to the modem on the sending side is digital, the modem converts it to analog, the remote side converts it back to digital.

Why is ADSL ideal for internet?

ADSL has numerous advantages over standard analog modem access to the Internet, including much higher data rates, instant connection, simultaneous voice/data over a single phone line, and greater security. The negative side is the higher equipment cost and limited availability of ADSL in current telco markets.

What is disadvantage of ADSL?

Asymmetrical speeds. ADSL offers great download speeds, but its upload is always limited. This is a big disadvantage for the headquarters where all remote VPNs terminate.

How far can ADSL?

Essentially, the standard ADSL can work up to 5.5km from the exchange. However, to get 8Mbit you would need to be located no further than 2km from the exchange. Similarly, ADSL2 can work up to 6km but you need to be no further than 1.5km to get 12Mb/s.

What is the fastest ADSL?

ADSL 8,192kbps/384kbps speed: This is the fastest speed you can get on an ADSL1 connection.