Tài liệu Adaptive WCDMA (P3) pdf

... interference) REF: fixed integration time (equiv. white interference) Adaptive threshold setting (nonuniform interference) Adaptive integration time (nonuniform interference) Up-ranked cells ... 3.18 Performance comparison of two-dimensional code acquisition (FASD search) with adaptive integration time and adaptive threshold setting (arbitrary nonuniform distribution, pattern III). t...

Ngày tải lên: 24/12/2013, 01:17

... shift register, which has a feedback tap connected to the ith cell if h i = 1, 0 <i≤ n. Adaptive WCDMA: Theory And Practice. Savo G. Glisic Copyright ¶ 2003 John Wiley & Sons, Ltd. ISBN:

Ngày tải lên: 24/12/2013, 01:17

... response of the adaptive process to the random variations of W 0i caused by a nonstationary input signal. In what follows, we will show that increasing the time constant of the adaptive process ... an equivalent noise. In this case, equation (7.3) can be interpreted as the estimation error. Adaptive WCDMA: Theory And Practice. Savo G. Glisic Copyright ¶ 2003 John Wiley & Sons, Ltd....

Ngày tải lên: 24/12/2013, 01:18

... coherent detection when adaptive antennas are not employed. The pilot channel is similar to IS-95 (i.e. it is composed of a long PN code and Walsh sequence number 0). When adaptive antennas are ... closed loop power control uses variable step sizes of 0.5, 1, 2 and 4 dB, which are adaptively controlled. IS-665 WCDMA supports the use of interference cancellation. So, even this standard w...

Ngày tải lên: 21/01/2014, 07:20

Ngày tải lên: 13/12/2013, 03:15

... any of these adaptive modulation methods. ADAPTIVE COMMUNICATIONS AND THE BOOK LAYOUT 9 continuously monitor these conditions and update the capacity threshold for access con- trol. Adaptive algorithms ... check, which introduces additional redundancy. Adaptive coding, modulation and power control While adaptive modulation (with coded or uncoded signal) and adaptive coding describ...

Ngày tải lên: 14/12/2013, 14:15

Ngày tải lên: 17/12/2013, 11:15

Ngày tải lên: 22/12/2013, 11:15

... +  2  T c  (4.4) The tracking error variance can be expressed as [1] τ 2 δ 1 2ρ L  1 + 2 ρ if  (4.5) Adaptive WCDMA: Theory And Practice. Savo G. Glisic Copyright ¶ 2003 John Wiley & Sons, Ltd. ISBN: ... detected data bearing symbols x i (i < k). This scheme will be referred to as decision feedback adaptive linear predictor (DFALP). Using a standard linear prediction approach...

Ngày tải lên: 24/12/2013, 01:17

... channel as p(n, ˜τ)=  ∞ −∞ r(t)h(t − nT −˜τ)dt q(n, ˜τ,ε)=  ∞ −∞ r(t)h(t − nT − εT −˜τ)dt (5.6) Adaptive WCDMA: Theory And Practice. Savo G. Glisic Copyright ¶ 2003 John Wiley & Sons, Ltd. ISBN: ... estimator for BPSK phase. 146 MODULATION AND DEMODULATION 11. Kobayashi, H. (1971) Simultaneous adaptive estimation and decision algorithm for carrier modulated data transmission system...

Ngày tải lên: 24/12/2013, 01:18