CDMAmultiple access interferencenear-far effectIn this paper the basic methods for reducing Multiple Access Interference (MAI) and combating the near-far effect in Direct-Sequence Code-Division Multiple-Access (DS-CDMA) mobile communication systems are presented. MAI and the near-far effect are ...
And according to the algorithm is near far-field transform theory to calculate the antenna far-field characteristics.───且根据该算法的近远场变换理论计算出了天线的远场特性。 In the applications, there are many problems, such as timing synchronization, near- far effect, and geometric dilution of...
Unlike conventional CDMA cooperative communication (CDMA-CC) systems, quite surprisingly power control devices that consume more energy to mitigate near-far ... Xu, W,Wang, L,Chen, G - 《IEEE Transactions on Circuits & Systems I Regular Papers》 ...
As it stands, Apple is expected to introduce the second-generation iPad in three variants and several different capacities. In addition to WiFi and GSM-based models targeted at AT&T and a broad range of European 3G providers, a CDMA version catering to Verizon and some Far East...
s a factor of a thousand in ten years, a million in twenty years, and a billion in thirty years. This goes far beyond Moore’s law (the...Drug discovery was once a matter of finding substances that produced some beneficial effect without excessive side effects. This process was similar ...
Families of 2D arrays can be constructed where each array has perfect autocorrelation, and the cross-correlation between any pair of family members is optimally low. We exploit equivalent Hadamard matrices to construct many families of p p × p arr
在卫星定位系统中,远近效应是影响定位精度的重要因素之一。 In satellite position system,the near-far effect is one of the import;ant factors that influenced the position accu- rac...
A radio transmitter and/or receiver apparatus uses an antenna to transmit and/or receive propagating electromagnetic radio waves (far-field communication) at one or more frequencies. If an inductive element is used in the same apparatus it may have an adverse effect on the operation of the anten...
in part on the level of activity at the second end, wherein making step (b) comprises: (b...(IS-13x), CDMA (IS-9x) or GSM for terrestrial wireless applications, or any other packet-...The incoming near-end PCM signal 60a can contain far-end echo that will have an effect on the...
Apparatus including: an antenna configured for efficient far field communication at a first frequency; an inductive element including a plurality of series-connected coiled portions