fdma

What is the difference between 4G and 4G LTE?

Many people use the terms 4g and 4g interchangeably, but they are not the same. Lets find out the difference…. Features of 4g 4G is the next step above and...
Article Topics :

access in lte, data lte, downlink, enodeb, epc, epc lte, epc lte architecture, fdma, frequency, interleaving, lte basic, lte rf planning, lte ue, mimo

BS Transmitting and Receiving Process in Wimax.

Transmitting:  After being processed at the MAC layer, the downlink data is sent to the physical layer inthe format of MAC PDU. The MAC PDU arranges the data block size...
Article Topics :

coding, downlink data, fdma, mac, modulation, ofdma, pdu, physical, radio resource, telecom, uplink

What are the Advantages of OFDMA in Wimax ?

 OFDMA is essentially a hybrid of FDMA and TDMA: Users are dynamically assigned subcarriers (FDMA) in different time slots (TDMA) . The advantages of OFDMA start with the advantages of...
Article Topics :

access, cell, fdma, frequency diversity, ofdm, ofdma, subcarrier, tdma, telecom, uplink, user

How Data Transmission in UL in LTE?

In UL, the UE has no dedicated resources to transmit directly when new data arrived in the buffer from higher layer.  It requests resources to transmit them.  It receives radio...
Article Topics :

categories, data lte, demodulation reference signal lte, downlink, fdma, frequency selective scheduling, lte, sc-fdma lte, sounding reference signal, telecom, transmission in lte, ue, ue in lte, uplink, uplink scheduling request lte

The Benefit of OFDM & OFDMA in Wimax

Less complex modulation. OFDM is a simpler modulation technique that is better suited to deployments that do not require support for mobility.  License-exempt bands. Mobile services require licensed spectrum to...
Article Topics :

fdma, mobile service, mobility, ofdm, ofdma, telecom, Wimax

Emergence of Standards-Based Technology

In 1998, the Institute of Electrical and Electronics Engineers (IEEE) formed a group called 802.16 to develop a standard for what was called a wireless metropolitan area network, or wireless...
Article Topics :

Emergence of Standards-Based Technology, interoperability testing, ieee, standards, wimax forum, physical layer, specifications, metropolitan area, interoperability testing, division duplexing3g, antenna, broadband, difference between, fdma, fixed, ofdma, point, solution, system, telecom, wifi, Wimax

Resource Block & Physical Resource Block in LTE

Resource Block Multiplex multiple users both in time and frequency, together with pilots and control signals. The time-frequency plane is divided into chunks=minimum resource allocation unit. The traffic multiplexing is...
Article Topics :

time and frequency, physical resource, resource block, frequency, allocationenodeb, fdma, lte, multiplex, ofdma, physical resource block, resource block, resource block in lte, telecom, traffic, traffic in lte, user

OFDMA Parameter for LTE

How Many OFDMA Parameter for LTE? Which is OFDMA Parameter for LTE ? The width of a Sub-carrier is 15 kHz whatever the bandwidth The bandwidths are: 1.4, 3, 5,...
Article Topics :

OFDMA Parameter for LTE, ofdma, ofdmbandwidth, cdma, fdma, hz, lte, ofdma, ofdma lte, parameter for lte, sub carrier, symbol, telecom

SC-FDMA Receiver Benefits in LTE

DFT spreading of modulation symbols reduces PAPR In OFDM, each modulation symbols “sees” a single 15 kHz subcarrier (flat channel) In SC-FD-A, each modulation symbol “sees” a wider bandwidth (i.e....
Article Topics :

SC-FDMA Receiver, sc-fdmafdma, lte, ofdm, receiver, sc fdma, subcarrier, telecom, uplink

Difference between DL and UL in LTE

what is main Difference between DL and UL in LTE ? OFDMA Advantages Robust against narrow-band co-channel interference Robust against Intersymbol interference (ISI) and fading High spectral efficiency Efficient implementation...
Article Topics :

Difference between DL and U, interference, fadingdifference, dl signal, fdma, implementation margin, intersymbol interference, isi, lte, ofdma, papr, power, telecom, what is fading and its types

OFDMA Transmitter in LTE

How OFDMA Transmitter in LTE ? In the downlink, OFDM is selected to efficiently meet E-UTRA performance requirements. With OFDM,  it is straightforward to exploit frequency selectivity of the multi-path...
Article Topics :

OFDMA Transmitter, ofdma, ofdmbandwidth, cell, e-utra, fdma, frequency, lte, ofdm, ofdm in lte, ofdma, telecom

OFDMA Principles in LTE

There are several ways to transmit over the frequency band and to share the resource between several devices.   What is TDMA,CDMA & FDMA ?   1.TDMA • The users...
Article Topics :

OFDMA Principles in LTEcdma, device, fdma, frequency band, gsm, lte, ofdma, resourse, tdma, telecom

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