Fig 2 - uploaded by Sungjin Kim
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We compare the achievable throughput of time division multiple access multiple-input multiple output (TDMA-MIMO) scheme illustrated in 3rd generation partnership project (3GPP) MIMO technical report (TR), versus the sum-rate ca-pacity of a space-time multiple access (STMA). These schemes have been proposed to improve 3GPP high speed downlink packet...
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Context 1
... schemes for BC represented as (1) can be brought into several scenarios, depending on the assumptions about the BS and the constraints put on transmit streams. First, we consider two methods of multiple access, which are time divi- sion multiple access multiple-input multiple output (TDMA- MIMO) and space-time multiple access (STMA), as shown in Fig. 2. TDMA-MIMO is a point-to-point communication at a time, in which BS transmits to the one selected user so as to optimize the link performance, while STMA allows BS to transmit to multiple users simultaneously, resulting in the capacity limit of the multiple antenna BC since the multiple antenna BC has the rank-aware degraded 1 nature. ...
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