performance improvements that can be obtained with the use of diversit terjemahan - performance improvements that can be obtained with the use of diversit Bahasa Indonesia Bagaimana mengatakan

performance improvements that can b

performance improvements that can be obtained with the use of diversity teen.
niques. The bit-error•probability. Pg. averaged through all the -ups and downs" of
the fading experience in a slow-fading channel can be computed as follows:

Pa=
Ps(x)p(x) dx
(1538)
where Pa(x) is the bit-error probability for a given modulation scheme at a specific
value of SNR s.x. where x =a2 EgiNo. and p(x) is the pdf of x due to the fading con-
ditions. With 4 and N,, constant, a is used to represent the amplitude variations
due to fading (see Section 15.22).
For Rayleigh fading, a has a Rayleigh distribution so &. and consequently x,
have a chi•squared distribution. Thus. following the form of Equation (15.15).
p(x)
cap (—r
I)
x 0
(15.39)
where l' • r?EaNc, is the SNR averaged through the "ups and downs" of fading. If
each diversity (signal) branch. i = 1 V. has an instantaneous SNR = y„ and we
assume that each branch has the same average SNR given by I'. then

1
(PK) = r esP —)
0
(15.40)
"Ille probability that a single branch has SNR less than some threshold y, is
pee, s

pey jdy,
fl Cip
(15A1)
= 1 — yip e
The probability that all M independent signal diversity branches are received si-
multaneously with an SNR less than some threshold value y. is
= I — exp
1.)
(15.42)
The probability that any single branch achieves SNR > y is
P(.1.
=
"P(— f)jM
(15A3)
This is the probability of exceeding a threshold when selection diversity is used
enema. III Knoll% at Illsvmdf.
0/5000
Dari: -
Ke: -
Hasil (Bahasa Indonesia) 1: [Salinan]
Disalin!
peningkatan kinerja yang dapat diperoleh dengan menggunakan keragaman remaja. niques. Bit-error•probability. PG. rata-rata melalui semua-ups dan downs"dari pengalaman memudar dalam saluran lambat-memudar dapat dihitung sebagai berikut: PA = PS(x)p(x) dx (1538)mana Pa(x) adalah probabilitas bit-kesalahan untuk skema modulasi yang diberikan di tertentu nilai SNR s.x. mana x = a2 EgiNo. dan p(x) pdf x karena memudar mem- dibebaskan atas syarat. Dengan 4 dan N,, konstan, yang digunakan untuk mewakili variasi amplitudo karena memudar (Lihat bagian 15,22).Untuk Rayleigh memudar, mempunyai distribusi Rayleigh jadi &. dan akibatnya x, memiliki distribusi chi•squared. Dengan demikian. mengikuti bentuk persamaan (15,15).p(x) Cap (-rI) x 0 (15.39)dimana l' • r?EaNc, adalah SNR rata-rata melalui "ups dan downs" memudar. Jika setiap cabang keragaman (sinyal). Aku = 1 V. telah SNR seketika = y "dan kami berasumsi bahwa masing-masing cabang memiliki sama rata-rata SNR diberikan oleh saya '. kemudian 1 (PK) = r esP —) 0 (15.40)"Ille probabilitas bahwa satu cabang memiliki SNR kurang dari beberapa ambang y, adalahkencing, s Ucok Pey, FL Cip (15A1) = 1-yip eKemungkinan bahwa semua M sinyal independen keragaman cabang yang menerima si- multaneously dengan SNR kurang dari beberapa ambang nilai y. adalah= Saya — exp 1.) (15,42)Kemungkinan bahwa setiap satu cabang mencapai SNR > y adalahP(.1. = "P(— f) jM (15A3)Ini adalah kemungkinan melebihi ambang batas ketika pilihan keragaman digunakanenema. III Knoll % di Illsvmdf.
Sedang diterjemahkan, harap tunggu..
Hasil (Bahasa Indonesia) 2:[Salinan]
Disalin!
performance improvements that can be obtained with the use of diversity teen.
niques. The bit-error•probability. Pg. averaged through all the -ups and downs" of
the fading experience in a slow-fading channel can be computed as follows:

Pa=
Ps(x)p(x) dx
(1538)
where Pa(x) is the bit-error probability for a given modulation scheme at a specific
value of SNR s.x. where x =a2 EgiNo. and p(x) is the pdf of x due to the fading con-
ditions. With 4 and N,, constant, a is used to represent the amplitude variations
due to fading (see Section 15.22).
For Rayleigh fading, a has a Rayleigh distribution so &. and consequently x,
have a chi•squared distribution. Thus. following the form of Equation (15.15).
p(x)
cap (—r
I)
x 0
(15.39)
where l' • r?EaNc, is the SNR averaged through the "ups and downs" of fading. If
each diversity (signal) branch. i = 1 V. has an instantaneous SNR = y„ and we
assume that each branch has the same average SNR given by I'. then

1
(PK) = r esP —)
0
(15.40)
"Ille probability that a single branch has SNR less than some threshold y, is
pee, s

pey jdy,
fl Cip
(15A1)
= 1 — yip e
The probability that all M independent signal diversity branches are received si-
multaneously with an SNR less than some threshold value y. is
= I — exp
1.)
(15.42)
The probability that any single branch achieves SNR > y is
P(.1.
=
"P(— f)jM
(15A3)
This is the probability of exceeding a threshold when selection diversity is used
enema. III Knoll% at Illsvmdf.
Sedang diterjemahkan, harap tunggu..
 
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