# How do you calculate spectral efficiency in LTE?

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For example, a system uses channel bandwidth as 2 MHz and it can support a raw data rate of say 15 Mbps, assuming 2 Mbps as overhead then net date rate will be as 13 Mpbs, then its spectrum efficient can be calculated as follows: Spectral efficiency= 13 x 10^6 / 2 x 10^6 = 6.5 bits/second/Hz.

## What is spectral efficiency formula?

Example 1: A transmission technique using one kilohertz of bandwidth to transmit 1,000 bits per second has a modulation efficiency of 1 (bit/s)/Hz. … The spectral efficiency or modulation efficiency is 56,000/3,100 = 18.1 (bit/s)/Hz downstream, and 48,000/3,100 = 15.5 (bit/s)/Hz upstream.

## What is LTE spectral efficiency?

The spectral efficiency is generally defined by the transmission data rates divided by the channel bandwidth and expressed in bits per second, per Hz (bps/Hz). It is also called as normalized throughput. … Normalized uplink throughput with an AMC in LTE.

## What is spectrum efficiency of a cellular network?

Also known as spectral efficiency or bandwidth efficiency, a cellular network’s spectral efficiency is equivalent to the maximum number of bits of data that can be transmitted to a specified number of users per second while maintaining an acceptable quality of service.

## What is 5G spectral efficiency?

5G New Radio is capable of providing a downlink throughput 2.31 Gbps and uplink throughput of 2.47 Gbps with certain configuration shown below assuming 100 MHz channel bandwidth. ( Single carrier component) Downlink Spectral Efficiency = 2.31 x 10^9 bps / 100 x 10^6 Hz = 23 bits/second/Hz.

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## Which bandwidth is more efficient?

Explanation: Of all the modulation showed, QAM is the most bandwidth efficient one. Explanation: The primary communication resources are transmitted power and channel bandwidth. 8. Greater the redundancy lesser is the bandwidth expansion.

What is the average uploading speed of 4G LTE network? Explanation: Verizon 4G LTE wireless broadband is 10 times faster than 3G able to handle download speeds between 5 and 12 Mbps (Megabits per second) and upload speeds between 2 and 5 Mbps. 6.

## What is the condition of handoff?

Explanation: Handoff occurs when a mobile moves into a different cell while a conversation is in progress. The MSC automatically transfers the call to a new channel belonging to the new base station.

## Why the shape of cell is not circle?

Why the shape of cell is not circle? Explanation: Circle is the first natural choice to represent the coverage area of a base station. But while adopting this shape, adjacent cells cannot be overlaid upon a map without leaving gaps or creating overlapping regions. 8.

## What are the advantages of frequency reuse?

Frequency Reuse

• Allows communications within cell on a given frequency.
• Limits escaping power to adjacent cells.
• Allows re-use of frequencies in nearby cells.
• Uses same frequency for multiple conversations.
• 10 to 50 frequencies per cell.