US 7,397,874 B2 · Method and device for detecting vertical bell laboratories layered space-time codes

Abstract

The present invention discloses a V-BLAST detection method for a MIMO system, including: a first detecting step for acquiring in sequence the old detection components of a transmitting symbol vector with the optimum ordering-successive interference cancellation detection method; a second detecting step for taking the detection component with the highest space diversity degree among the old detection components as a first new lo detection component, and acquiring in sequence the other new detection components of the transmitting symbol vector in an inverse order of the optimum detection order with the optimum ordering-successive interference cancellation detection method; an outputting step for outputting the first new detection component and the other new is detection components as the final detection result. The method according to the invention employs the outer close loop iteration technology to further reduce inter-layer error propagation of V-BLAST. This method has less complexity.

Claims13

Dependent claims

A V-BLAST (Vertical Bell Laboratories Space-Time codes) detection method for a MIMO (Multiple Input Multiple Output) system, including:

a first detecting step for acquiring in sequence the old detection components
(
a
^
M
old
,
a
^
M
-
1
old
,
…
⁢
,
a
^
1
,
where
⁢
⁢
M
⁢
⁢
is
⁢
⁢
an
⁢
⁢
integer
)
of a transmitting symbol vector (a) with the optimum ordering-successive interference cancellation detection method;
a second detecting step for taking the detection component (â1) with the highest space diversity degree among the old detection components
(
a
^
M
old
,
a
^
M
-
1
old
,
…
⁢
,
a
^
1
)
as a first new detection component, and acquiring in sequence other new detection components
(
a
^
2
new
,
a
^
3
new
,
…
⁢
,
a
^
M
-
1
new
,
a
^
M
new
)
of said transmitting symbol vector (a) in an inverse order of optimum detection order with the optimum ordering-successive interference cancellation detection method;
an outputting step for outputting said first new detection component (â1) and said other new detection components
(
a
^
2
new
,
a
^
3
new
,
…
⁢
,
a
^
M
-
1
new
,
a
^
M
new
)
as the final detection result.

110 more elements

A V-BLAST (Vertical Bell Laboratories Space-Time codes) detection device for a MIMO (Multiple Input Multiple Output) system, including:

a first detecting means for acquiring in sequence the old detection components
(
a
^
M
old
,
a
^
M
-
1
old
,
…
⁢
,
a
^
1
,
where
⁢
⁢
M
⁢
⁢
is
⁢
⁢
an
⁢
⁢
integer
)
of a transmitting symbol vector (a) with the optimum ordering-successive interference cancellation detection method;
a second detecting mean for selecting the detection component (â1) with the highest space diversity degree among the old detection components
(
a
^
M
old
,
a
^
M
-
1
old
,
…
⁢
,
a
^
1
)
as a first new detection component, and acquiring in sequence other new detection components
(
a
^
2
new
,
a
^
3
new
,
…
⁢
,
a
^
M
-
1
new
,
a
^
M
new
)
of said transmitting symbol vector (a) in an inverse order of the optimum detection order with the optimum ordering-successive interference cancellation detection method;
an outputting means for outputting said first new detection component (â1) and said other new detection components
(
a
^
2
new
,
a
^
3
new
,
…
⁢
,
a
^
M
-
1
new
,
a
^
M
new
)
as the final detection result.

110 more elements

Dependencies are inferred from the claim text.

Method and device for detecting vertical bell laboratories layered space-time codes

Life of this patent

Method and device for detecting vertical bell laboratories layered space-time codes

Life of this patent

Abstract

Claims13