Post by Jawad Ahmad Riaz
4G Network Technology
Cellular Broadband Networks: 4G networks
The planned requirements of the 1 Gbps for stationary communication and 100 Mbps for mobile communications are not fulfilled with the implementation of WiMAX and LTE technologies. These effectuations are treated as a stopgap measure to boost until LTE Advanced and WiMAX 2 are senesced.
The Standards of 4G
ITU-R defines that 4G refers to the International Mobile Telecommunications Advanced (IMT-Advanced) and must abide by requirements given below.
- For high mobility the peak data rate at a 4G network must be 100 Mbps and the rate of 1 Gbps for low mobility (nomadic wireless access).
- The technology must be dealt with all-IP packet switched network.
- The capability to utilize and share resources to address concurrent users per cell.
- The ascendable channel bandwidth between 5 to 20 MHz and 40 MHz in a optional case.
- The peak link spectral efficiency of 6.75 bit/s/Hz for uplink and 15 bit/s/Hz for downlink. The system spectral efficiency should be 2.25 bit/s/Hz/cell for the indoor usage, and 3/bit/s/Hz/cell in the downlink.
- Across heterogeneous networks smooth handovers must be ensured.
- Capacity to highly serve the next generation multimedia support.
- The realm of telecommunications has already embraced the term 4G as a short form of advanced cellular technology that is based on MIMO transmission, OFDMA and SC-FDE technologies and an all-IP architecture. The 4th Generation is developing but none could deny its promising prospects.
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