Academic
Publications
Differential unitary space-time modulation

Differential unitary space-time modulation,10.1109/26.891215,IEEE Transactions on Communications,Bertrand M. Hochwald,Wim Sweldens

Differential unitary space-time modulation   (Citations: 664)
BibTex | RIS | RefWorks Download
We present a framework for differential modulation with multiple antennas across a continuously fading channel, where neither the transmitter nor the receiver knows the fading coefficients. The framework can be seen as a natural extension of standard differential phase-shift keying commonly used in single-antenna unknown-channel systems. We show how our differential framework links the unknown-channel system with a known-channel system, and we develop performance design criteria. As a special ease, we introduce a class of diagonal signals where only one antenna is active at any time, and demonstrate how these signals may be used to achieve full transmitter diversity and low probability of error
Journal: IEEE Transactions on Communications - TCOM , vol. 48, no. 12, pp. 2041-2052, 2000
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
    • ...After initialization, data symbols are mapped into unitary �� �� × �� �� space-time codewords S[�� ], ∀�� ≥ 1 which relate subsequent transmitted data matrices according to [31], [32]...

    Meriam Rezket al. On High Performance MIMO Communications with Imperfect Channel Knowled...

    • ...Differential space-time modulation (DSTM) [5],[6] attracts much attention in recent years...
    • ...In the DSTM scheme in [5] and [6], Xt is determined by...
    • ...The original definition of DSTM in [5] and [6] is to map data bits bt to Ct 2 S 0 and then obtain Xt by Xt =...
    • ...Theorem 2: Consider a differential encoder E whose minimum noncoherent distance ζ [6] is nonzero...
    • ...The DSTM defined by Table III has ζ = 0.5, which is better than ζ of other DSTM without constellation expansion with 2 bits/sec/Hz, including the DSTM from [5] and [6]...
    • ...Simulation results for the quasistatic flat fading channel with nR = 2 are shown in Fig. 6. We compare this DSTM with other DSTM from [5], [6] and [8]...

    Ruey-Yi Weiet al. Further results on differential encoding by a table

    • ...It is noted that should be less than or equal to , since no further capacity gain may be achieved for ,a s shown in [11], [12]...

    Hoang Anh Ngoet al. Space-Time-Frequency Shift Keying for Dispersive Channels

    • ...Differential space-time modulation (DSTM) [1]-[2] is an easily implemented and attractive transmit diversity method with multiple transmit antennas...
    • ...where dn is the differential coded symbol of bn, and um is the coefficient which is optimized to achieve maximum diversity product as show in [1]...

    Ziyan Jiaet al. Iterative noncoherent detection of coded differential space-time modul...

    • ...Direct blind detection methods such as differential space-time (ST) encoding [9]–[12] and blind ML detection methods [13]–[15] exhibit substantial performance loss in terms of bit-error rate (BER) when compared against coherent ML detection...

    Zia Muhammadet al. Blind Multiuser Detection for Synchronous High Rate Space-Time Block C...

Sort by: