51.613G

51.613G is a fixed and mobile broadband wireless access technology. It is designed to provide a cost-effective solution for expanding existing mobile networks. This technology can be deployed for both outdoor and indoor coverage, making it an ideal solution for operators to improve coverage and capacity. In addition, it is capable of providing high data rates for applications such as audio, video, and interactive services.

The 51.613G application field includes, but is not limited to, public safety, public transportation, enterprise networks, metropolitan areas networks, mobile backhaul, and rural broadband services. In particular, it serves as an ideal solution for mobile broadband services for both urban and rural areas with its high data rates, low latency, and advanced features such as enhanced multimedia capabilities.

The 51.613G working principle is based on the carrier sense multiple access with collison avoidance (CSMA/CA) scheme. This protocol allows multiple nodes to transmit simultaneously on the same frequency band. Each node monitors the communications medium and when it finds that the medium is idle, then the node will attempt to transmit its data. If multiple nodes transmit at the same time, then a collision is detected and the transmitter nodes backoff, wait for a certain period of time, and then attempt to re-transmit.

The 51.613G physical layer is based on the direct sequence code division multiple access (DS-CDMA) scheme. This technique offers several advantages such as low power consumption, high spectral efficiency, and increased link reliability. It also provides protection against both narrowband and wideband interference. The access to the medium is controlled by a distributed multi-user diversity protocol which ensures a fair share of access among the users.

The 51.613G link layer is based on an adaptive, packet-oriented protocol called the medium access control (MAC) layer protocol. This protocol provides an efficient and reliable medium access capability. It also enables different users to simultaneously access the medium by using different packet structures. Furthermore, it provides for dynamic link adaptation, which allows the MAC layer to adjust the modulation and coding scheme (MCS) of each packet according to the quality of the link.

In summary, the 51.613G technology provides a cost-effective and reliable solution for expanding existing mobile networks. Its application field includes public safety, public transportation, enterprise networks, metropolitan area networks, mobile backhaul, and rural broadband services. The 51.613G working principle is based on the CSMA/CA and DS-CDMA protocols and the MAC layer protocol enables efficient and reliable medium access. This technology is an ideal solution for operators to improve coverage and capacity and to provide high data rates for audio, video, and interactive services.