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2452 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 7, JULY 2008 Differential Diversity-Embedding
 

Summary: 2452 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 7, JULY 2008
Differential Diversity-Embedding
Space-Time Block Coding for 2 and 4 Transmit Antennas
Payam Rabiei, Student Member, IEEE and Naofal Al-Dhahir, Fellow, IEEE
Abstract--Diversity-Embedding Space-Time Block Coding
(DE-STBC), introduced in [1], enables Unequal Error Protection
(UEP) using multiple transmit antennas. Even though these codes
do not require channel state information (CSI) at the transmitter,
they do need it at the receiver for decoding. A novel differential
DE-STBC scheme is proposed in this paper to eliminate the need
for channel estimation at the receiver which is especially costly
with multiple transmit and receive antennas. Most previously
proposed differential schemes in the literature are based on
orthogonal STBC and hence are not applicable to the non-
orthogonal family of DE-STBC considered in this paper.
Index Terms--Diversity embedding, differential detection de-
coding, throughput, unequal error protection, space-time coding.
I. INTRODUCTION
ACCURATE channel state information (CSI) is required in
a coherent communication system to enable reliable de-

  

Source: Al-Dhahir, Naofal - Department of Electrical Engineering, University of Texas at Dallas

 

Collections: Engineering